The cost of 1 dou of corn is 9 coins and the cost of 1 dou of sesame is 3 coins.
Let x be the cost of 1 dou of corn and y be the cost of 1 dou of sesame.
Using the first set of information, we can create the following equation
4x + 12y = 72
Simplifying this equation by dividing by 4, we get
x + 3y = 18
Using the second set of information, we can create another equation
5x + 10y = 75
Simplifying this equation by dividing by 5, we get
x + 2y = 15
Now we have two equations with two variables
x + 3y = 18
x + 2y = 15
Subtracting the second equation from the first, we get
y = 3 coins
Substituting this value of y back into either of the two equations, we get
x + 3(3) = 18
x + 9 = 18
x = 9 coins
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HELP!!!! Solve for y in the following equation: -4y + 9 = -28
Answer:
y = 37/4
Step-by-step explanation:
Answer:
Your answer is y = 37/4 or 9.25 or 9/1/4
Step-by-step explanation:
Right away we can just solve for y, so we minus 9 to both sides of the equation:
-4y = -37
Then we divide -4 from both sides:
y = 37/4 or 9.25 or 9/1/4
A movie theater charges $5 for an adult ticket and $2 for a child's ticket . one saturday the theater sold 785 tickets for $3,280 how many of each type of tickets were sold
By the solving equation we get 570 adult tickets and 215 child tickets were sold on that Saturday at the movie theater.
To find the number of each type of tickets sold, we can use a system of equations. Let's assume that the number of adult tickets sold is represented by 'a', and the number of child tickets sold is represented by 'c'.
From the given information, we know that the movie theater charges $5 for an adult ticket and $2 for a child's ticket. We also know that the theater sold 785 tickets for a total revenue of $3,280.
Based on this information, we can write two equations:
1. The total number of tickets sold: a + c = 785 (Equation 1)
2. The total revenue from ticket sales: 5a + 2c = 3280 (Equation 2)
Now, let's solve this system of equations to find the values of 'a' and 'c'.
First, let's isolate 'a' in Equation 1 by subtracting 'c' from both sides:
a = 785 - c
Next, substitute the value of 'a' in Equation 2:
5(785 - c) + 2c = 3280
Simplify the equation:
3925 - 5c + 2c = 3280
3925 - 3c = 3280
Now, isolate 'c' by subtracting 3925 from both sides:
-3c = 3280 - 3925
-3c = -645
Divide both sides of the equation by -3 to solve for 'c':
c = -645 / -3
c = 215
Now, substitute the value of 'c' back into Equation 1 to solve for 'a':
a + 215 = 785
a = 785 - 215
a = 570
Therefore, 570 adult tickets and 215 child tickets were sold on that Saturday at the movie theater.
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Rotate pentagon ABCDE 90 ° counterclockwise. Which point has the lowest x-coordinate?
Answer:
Just flip the points to the negative values in the 2nd quadrant
Jacqui wants to work out 3480 ÷ 5
She knows that
Jacqui writes because and
3480 ÷ 10 = 348
3480 ÷ 5 = 174 10 ÷ 5 = 2
348 ÷ 2 = 174
What mistake did Jacqui make in her method?
Answer:
Jacqui mistake is that she divided wrong because 3480 divided by 5 is 696
Step-by-step explanation:
Jacqui mistake is that she divided wrong because 3480 divided by 5 gives 696
What is an expression?Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.
The Numbers constants, variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbol; which can also be used to indicate the logical syntax's order of operations and other features.
We are given that Jacqui wants to work out 3480 ÷ 5
She knows that Jacqui writes
3480 ÷ 10 = 348
3480 ÷ 5 = 174
This solution of the division is wrong, the correct answer is
3480 ÷ 5 = 696
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Consider the following IS-LM model: C=217+0.51Y D I=156+0.16Y−1,038i G=254 T=203 i=0.04 The IS equation is determined to be Y=1,586.27−3,145.45. The LM equation is given as i=0.04. Using the IS and LM equations, the equilibrium real output, Y, is (Round your response to the nearest integer.) Using the IS-LM model, the equilibrium value of consumption, C, is (Round your response to the nearest integer.)
In the given IS-LM model, the equilibrium real output, Y, and the equilibrium value of consumption, C, can be determined using the IS and LM equations. The IS equation relates output to the interest rate, while the LM equation represents the equilibrium condition in the money market. By substituting the given values into the equations, we can find the equilibrium values.
The IS equation is given by: Y = 1,586.27 - 3,145.45i.
The LM equation is given as: i = 0.04.
To find the equilibrium real output, we substitute the value of i from the LM equation into the IS equation:
Y = 1,586.27 - 3,145.45 * 0.04.
Calculating the right side of the equation, we have:
Y = 1,586.27 - 125.82,
Y ≈ 1,460.
Therefore, the equilibrium real output, Y, is approximately 1,460.
To find the equilibrium value of consumption, we substitute the equilibrium real output, Y, into the consumption function:
C = 217 + 0.51Y.
Substituting Y = 1,460, we have:
C = 217 + 0.51 * 1,460.
Calculating the right side of the equation, we find:
C ≈ 984.
Therefore, the equilibrium value of consumption, C, is approximately 984.
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A. y = sin(x - Tt/2)
C. y=sin(x + 1)
Find the equation.
1
NEN
2
k
B. y = sin x
D. y = sin(x +
TT/2)
The requried equation of the graph shown is y = sin (x - π/2).
The curve shown in the graph is of the sine function with some trasformation given as,
The graph of sinx is shifted π/2 units left, so the equation of the graph is given as,
y = sin (x - π/2)
Thus, the requried equation of the graph shown is y = sin (x - π/2).
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Evaluate: 2(6+4) - 3(5)
70
1
5
85
Answer:
\(2(6 + 4) - 3(5) \\ 12 + 8 - 15 \\ = 5\)
Answer:
1
Step-by-step explanation:
2*6+4-3*5
12+4-15
16-15
1
A lottery consists of drawing 5 balls numbered 1 to 43 and a single ball numbered 1 to 23 from a separate machine. a) how many realizations exist to draw 5 balls of 43? b) how many realizations possible to draw 1 ball of 23? c) What is the probability of hitting a jackpot guessing all 6 numbers correctly?
a) There are 8,145,060 possible outcomes when drawing five balls numbered 1 to 43.
b) There are 23 possible outcomes when drawing one ball numbered 1 to 23.
c) The probability of hitting a jackpot guessing all 6 numbers correctly is 1/186,492,840.
a) In this case, we want to choose 5 balls from a set of 43 balls, so we can calculate the total number of possible outcomes as:
⁴³C₅ = 43! / (5! * (43-5)!) = 43! / (5! * 38!) = 8,145,060
b) In this case, we want to choose 1 ball from a set of 23 balls, so we can calculate the total number of possible outcomes as:
²³P₁ = 23! / (23-1)! = 23
c) To calculate the probability of hitting a jackpot by guessing all six numbers correctly, we need to calculate the probability of each individual event and then multiply them together.
The probability of correctly guessing all five balls numbered 1 to 43 is:
1/8,145,060
The probability of correctly guessing the single ball numbered 1 to 23 is:
1/23
Therefore, the probability of hitting the jackpot by correctly guessing all six numbers is:
(1/8,145,060) * (1/23) = 1/186,492,840
This means that the chances of winning the jackpot in this lottery are approximately 1 in 186.5 million.
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not sure how to do these. i need help with 13! needing it to be reduced just like y should be 8
Answer:
I'm not sure 710
Step-by-step explanation:
I'm not sure
Answer:
#14
y=5
x=14
Step-by-step explanation:
I did 14 for you
the two expressions with x equal each other since they are on the same side of their line, similar to eachother. Then plug in x into one of those expressions and do 180- your answer to get the angle for one of the y expressions since its on the other side of the line. both angles have to add up to 180.
Mary works as a tutor for $12 an hour and a waitress for $15 an hour. This month she worked a combined total of 91 hours at her two jobs let t be the number of hours Mary worked as a tutor this month write an expression for the combined total dollar amount she earned this month
The combined total dollar amount earned by Mary this month is given by the expression "-3t + 1365".
The question asks us to find the total amount of money earned by Mary by working as a tutor and a waitress combined. We have been given that Mary earns $12 per hour as a tutor and $15 per hour as a waitress.Let the number of hours Mary worked as a tutor be t. As we know, the total number of hours worked by Mary is 91.
So, Mary must have worked (91 - t) hours as a waitress.So, the total money earned by Mary is given by: Total money earned = (Money earned per hour as a tutor × Number of hours worked as a tutor) + (Money earned per hour as a waitress × Number of hours worked as a waitress)⇒ Total money earned = (12 × t) + (15 × (91 - t))⇒ Total money earned = 12t + 1365 - 15t⇒ Total money earned = -3t + 1365.
So, the combined total dollar amount earned by Mary this month is given by the expression "-3t + 1365".Note: As the question asks for an expression, we do not need to simplify it. However, if we are required to find the actual dollar amount, we can substitute the value of t in the expression and then simplify it.
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1.A vegetable oil extractor costing Rs. 1,50,000 with annual operating cost of Rs. 45,000 and an estimated life of 12 years has a salvage value of Rs. 18,000. Alternate oil extractor equipment costs Rs. 54,000 with a life of 6 years has Rs. 6000 junk value and the operating costs are Rs. 75,000 annually. What is the rate of returns for the extra investment if the extractor is replaced.
To calculate the rate of return for the extra investment, we need more information such as the cash inflows from the extractor and the alternate equipment. Without this information, it is not possible to determine the rate of return.
To calculate the rate of return, we would need the cash inflows generated by both the existing extractor and the alternate equipment. Cash inflows could come from the sale of vegetable oil or any other revenue generated by using the equipment. Without these values, we cannot calculate the rate of return.
Additionally, the rate of return calculation would also require the initial investment, salvage value, and the time period considered. In this case, the initial cost and salvage value for the existing extractor are provided, but we still need the initial cost and salvage value for the alternate equipment.
Without the necessary data, it is not possible to determine the rate of return for the extra investment in the extractor replacement.
The calculation of the rate of return for the extra investment in the extractor replacement cannot be determined without knowing the cash inflows from both the existing extractor and the alternate equipment.
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7x-23
2x + 11
3(x+2)
Answer: x=31/2
Step-by-step explanation:
7x-23 + 2x + 11 + 3(x+2) = 180 ==>3 angles of triangle add up to 180 degrees
7x-23 + 2x + 11 + 3x+6=180
7x+3x+2x+11+6-23=180
10x+2x+17-23=180
12x-6=180
12x-6+6=180+6
12x=186
x=186/12
x=31/2
2. Melissa, a city planner, had two pieces of wire of equal length. She shaped one piece into a
square to represent a new building site and the other into an isosceles triangle to represent a
nearby park. The base of the triangle is 4 cm shorter than a side of the square, and each leg of
the triangle is 9 cm longer than a side of the square. How long was each piece of wire?
Answer:
Step-by-step explanation:
10 cm
12 cm
20 cm
12 + x
G
12 cm
A
X
Answer:
x = 12 cm and y = 24 cm
Step-by-step explanation:
Three sides of the first triangle are 10 cm, 12 cm and 12 cm.
Three sides of second triangle are 20 cm, 12+x cm and y cm.
As these two triangles are similar, it means,
\(\dfrac{10}{20}=\dfrac{12}{12+x}=\dfrac{12}{y}\\\\\dfrac{1}{2}=\dfrac{12}{12+x}=\dfrac{12}{y}\\\\\dfrac{1}{2}=\dfrac{12}{y}\ \text{and}\ \dfrac{1}{2}=\dfrac{12}{12+x}\\\\y=24\ cm\ \text{and}\ 24=12+x,x=12 cm\)
So, the value of x is 12 cm and that of y is 24 cm.
show that, in any group of two or more people, there are always two who have exactly the same number of friends within the group.
In any group of two or more people, there are always two who have the same number of friends within the group.
Suppose we have a group of n people. Each person can have between 0 and n-1 friends within the group. If someone has 0 friends, then everyone else must have at least 1 friend. Similarly, if someone has n-1 friends, then everyone else must have at most n-2 friends.
Therefore, there are only n-1 possible numbers of friends that a person can have within the group. But we have n people, so by the pigeonhole principle, at least two people must have the same number of friends within the group.
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3/5 divided by 2 1/2
Step-by-step explanation: To divide mixed numbers, first rewrite the mixed numbers as improper fractions.
So here, 3/5 is already a fraction and 2 and 1/2 can be written as 5/2.
Remember that dividing by a fractions means the same thing
as multiplying by the reciprocal of that fraction.
In other words, 3/5 ÷ 5/2 can be rewritten as 3/5 · 2/5.
Finally, multiplying across the numerators and the
denominators, we have 6/25.
The result of the division of 3/5 divided by 2 1/2 is: 6/25.
Here, we have,
given that,
3/5 divided by 2 1/2
To divide mixed numbers, first rewrite the mixed numbers as improper fractions.
So here, 3/5 is already a fraction and 2 and 1/2 can be written as 5/2.
Remember that dividing by a fractions means the same thing
as multiplying by the reciprocal of that fraction.
In other words, 3/5 ÷ 5/2 can be rewritten as 3/5 · 2/5.
Finally, multiplying across the numerators and the
denominators,
we have 6/25.
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Find the value of each variable.
z = ?
y = ?
x = ?
85
63
all equals 103
The weights of 1,000 onions from a certain farm follow a normal distribution with a mean of 150 grams and a standard deviation of 15 grams.
From the data, we can conclude that about
onions weigh more than 165 grams and about
onlons welgh less than 135 grams.
Reset
Next
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M
5:2
Approximately 159 weigh less than 135 g and approximately 159 weigh more than 165 g. Plotting the average value with one standard deviation
what is standard deviation ?The standard deviation can be calculated by simply calculating the square root of the total of all squared variances. plotting the average value with one standard deviation, or sigma, above or below that normal distribution curve.
given
Mean, μ = 150
15 is the standard deviation.
Using the Zscore equation:
Zscore is equal to (x-) /
For x > 165
P(x > 165)
Z = (165 - 150) / 15
Z = 15 /15 = 1
P(Z > 1) = 0.15866 (Z probability calculator) (Z probability calculator)
1000 * 0.15866 = 158.66 = 159
For x < 135
P(x < 135)
Z = (135 - 150) / 15
P(Z > - 1) = 0.15866 (Z probability calculator) (Z probability calculator)
1000 * 0.15866 = 158.66 = 159
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helpppp assaaaaaaap
determine the equation of line (AB)
A(I;1) and B(0;5)
The chef filled a big pot with 3. 7 cups of water and filled a smaller pot with 7. 3 cups of water. Which pot has more water?
Using a unitary method, we have identified that the smaller pot has more water.
To compare the amount of water in the two pots, we need to find a common unit of measurement. In this case, both pots are measured in cups, so we can simply compare the number of cups in each pot. The chef filled the larger pot with 3.7 cups of water, and the smaller pot with 7.3 cups of water.
Now, we can use a unitary method to compare the two quantities. Let's assume that one cup is our unit of measurement. To find out how many cups of water are in the smaller pot, we can divide 7.3 by 1 cup. This gives us 7.3 cups of water. To find out how many cups of water are in the larger pot, we can divide 3.7 by 1 cup. This gives us 3.7 cups of water.
As we can see, the smaller pot has more water than the larger pot.
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Find the probability of selecting a red card or a 4 from a deck of 52 cards.A.7/13B.15/26C.6/13D.3/5
The probabilityIna deck of 52 cards, there are 26 red cards and 4 cards numbered 4.
Thus,
\(\begin{gathered} \text{Number of red cards = n(red cards) =26} \\ \text{Number of 4 = n(4) = 4} \\ \text{Total number of cards in a deck = 52} \end{gathered}\)Probability of an event is evaluated as
\(Pr\text{ = }\frac{\text{number of favourable outcomes}}{\text{total number of possible outcomes}}\)Thus,
\(\begin{gathered} \text{Probability of picking a red card = Pr(R)=}\frac{\text{number of red cards}}{total\text{ number of cards}} \\ Pr(R\text{) = }\frac{\text{26}}{52}=\frac{1}{2} \\ \Rightarrow Pr(R\text{) = }\frac{1}{2} \end{gathered}\)Similarly,
\(\begin{gathered} \text{Probability of picking a 4 = Pr(4) = }\frac{\text{total number of 4}}{total\text{ number of cards}} \\ Pr(4)=\frac{4}{52}\text{ = }\frac{1}{13} \\ \Rightarrow Pr(4_{_{}})=\text{ }\frac{1}{13} \end{gathered}\)The probability of selecting a red card or a 4 is evaluated as
\(\begin{gathered} Pr(R\text{ }\cup\text{ 4) = Pr(R) + Pr(4) } \\ =\text{ }\frac{1}{2}\text{ + }\frac{1}{13} \\ \text{LCM = 26} \\ \Rightarrow\frac{13+2}{26}\text{ =}\frac{15}{26} \\ Pr(R\text{ }\cup\text{ 4)=}\frac{15}{26} \end{gathered}\)Thus, the probability of selecting a red card or a 4 from a deck of 52 cards is
\(\frac{15}{26}\)The correct option is B
Helppplllll vxjjkdmms I’ll give u a star
i think it is a function.
Answer:
Function
Step-by-step explanation:
if I'm wrong beat me up
m∠2=(7x−11)∘ and m∠4=(4x+4)∘
What is m∠1 ?
Answer:
Step-by-step explanation:
7x-11=4x+4(being vertically opposite abgles)
7x-4x=4+11
3x=15
x=15/3
x=5
angle 2+angle1=180 degree(being straight line)
7x-11+angle 1=180
7*5-11+angle 1=180
35-11+angle1=180
24+angle 1=180
angle 1=180-24
angle 1=156 degree
How to Write 9 in Roman Numerals?
To write 9 in Roman Numerals, you would use the symbols "IX".
The symbol "I" represents the number 1 and the symbol "X" represents the number 10. When a smaller symbol is placed before a larger symbol, it means that the smaller symbol is subtracted from the larger symbol.
In this case, "I" is placed before "X", so it is subtracted from 10, giving us the value of 9.
Here is a step-by-step explanation:
1. Identify the symbols for 1 and 10: "I" and "X"
2. Place the smaller symbol before the larger symbol: "IX"
3. Subtract the smaller symbol from the larger symbol: 10 - 1 = 9
4. The result is the value of the Roman Numeral: "IX" = 9
Therefore, the Roman Numeral for 9 is "IX".
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Please solve: 8n+2≤8n−9! Show your work please!
$57Mr. Harris attaches a full tank of propane to his grill. Then he turns on the grill and cooks food for a barbecue.Which graph shows the relationship between the amount of propane in the tank and time?OAOB.РРtTime (min.)PropanePropane
As he cooks on the barbecue, the weight of the tank goes down because some of the propane is getting used up.
Given that is happening, the graph showing that has to start with a lot in it and slowly decrease.
That being said, the graph representing the decrease in propane as time passes is C.
Answer: C.
What is the distance between the points (3,7) and (-2, 10)
Answer:
√34
Step-by-step explanation:
To find the distance between two points, you can use the distance formula, which is:
d = √[(x2 - x1)^2 + (y2 - y1)^2]
We can plug in the points (3, 7) and (-2, 10) to get:
d = √[(-2 - 3)^2 + (10 - 7)^2]
We can simplify.
d = √[(-5)^2 + (3)^2]
d = √(25 + 9)
d = √(34)
d = √34
Find the length of the missing side of the right triangle.
24 ft
7 ft
O 25 ft
O 31 ft
O 22.96 ft
O 625 ft
Answer:
25 ft
Step-by-step explanation:
Side² = 24² + 7² = 625
√625 = 25 ft
Twice a number y is more than
-2.5
Answer:
2y >= 5/2
Step-by-step explanation:
I need help with this please
Answer:
polygons
Step-by-step explanation:
this is a hexagon so the sum of interior angles is 720. so add all of those angles and expressions and set it equal to 720. collect like terms and solve for x
once you have x, evaluate and get the exact angle measurements.