The probability of a spinner landing on 3 is 0.125, and the probability of landing on an even number is 0.5. Which spinner best models these probabilities? Responses
There are currently 6,210 fish in a lake. If the number of fish in the lake increased by 15 percent during the last year and 20 percent during the year before that, how many more fish are in the lake currently than in the last two years ago?
I’m pretty sure the answer should be 1,710 if not i’m sorry
Answer:
1710 fish
Step-by-step explanation:
Let the number of fish in the lake last year be 'x'
The equation becomes-
x + 15x/100=6210 (This is because 15% of x is added in x to become
6210... hope you understand)
x + 15x/100 = 6210
115x/100 = 6210
23x/20 = 6210
x = 6210 * 20/23
x = 270 * 20
x = 5400
Therefore- The number of fish last year = 5400
Now, let the number of fish in the lake 2 years ago be 'y'
The equation becomes-
y + 20y/100 = 5400 (Same logic as last time)
y + 20y/100 = 5400
120y/100 = 5400
24y/20 = 5400
6y/5 = 5400
y = 5400 * 5/6
y = 900 * 5
y = 4500
Therefore- Fish in the lake two years ago = 4500 fish
Difference between current and two years ago = 6210-4500
= 1710 fish
Hope you understood the answer and I hope it helps you :)
I have 60% on my iPad and my brother has 90% on his how much more percentage I need as a fraction.
Answer:
1/3
Step-by-step explanation:
just convert it?
3/10
Step-by-step explanation:
60% is the same as 60/100
90% is the same as 90/100
90-60=30
30/100
30/100 is divided by 10 on each side to simplify it to 3/10
5. Write an expression.
a. 2 less than s
c. 5 times the quantity y - 2
b. the quantity 7 + x, squared
d. the quotient of 4 and x²
Just need help on this.
Answer:
start answer goes to: 4/9, then 0.78, then -1/8, then -2.1, then -1 2/3, then -1.82, then -3 1/2, then -1.728, finally 14.44
Use the Midpoint Rule with \(n=5\) to estimate the volume obtained by rotating about the y-axis the region under the curve \(y=\sqrt{1+x^3}\), \(0\leq x\leq 1\).
To estimate the volume using the Midpoint Rule with \(\displaystyle n=5\), we need to divide the interval \(\displaystyle 0\leq x\leq 1\) into \(\displaystyle n\) subintervals of equal width. Since \(\displaystyle n=5\), each subinterval will have a width of \(\displaystyle \Delta x=\frac{1-0}{5}=\frac{1}{5}\).
Now, let's calculate the volume using the Midpoint Rule. The formula for the volume obtained by rotating about the y-axis is:
\(\displaystyle V\approx 2\pi \sum _{i=1}^{n}y_{i}\Delta x\)
where \(\displaystyle y_{i}\) represents the value of the function \(\displaystyle y=\sqrt{1+x^{3}}\) evaluated at the midpoint of each subinterval.
First, let's find the midpoints of the subintervals. Since the width of each subinterval is \(\displaystyle \Delta x=\frac{1}{5}\), the midpoint of the \(\displaystyle i\)-th subinterval is given by:
\(\displaystyle x_{i}=\frac{\Delta x}{2}+\left( i-\frac{1}{2}\right) \Delta x=\frac{1}{10}+\left( i-\frac{1}{2}\right) \frac{1}{5}\)
Substituting \(\displaystyle x_{i}\) into the function \(\displaystyle y=\sqrt{1+x^{3}}\), we obtain:
\(\displaystyle y_{i}=\sqrt{1+\left( \frac{1}{10}+\left( i-\frac{1}{2}\right) \frac{1}{5}\right) ^{3}}\)
Now, we can calculate the approximate volume using the Midpoint Rule:
\(\displaystyle V\approx 2\pi \sum _{i=1}^{5}y_{i}\Delta x\)
Substituting the values of \(\displaystyle y_{i}\) and \(\displaystyle \Delta x\) into the formula, we can evaluate the sum and compute the estimated volume.
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Michael is planting a garden. It has the shape of a right triangle. He wants 2 plants for each square foot of area. How many plants does he want in the garden?
Answer:
To find the area first you multiply 1/2 base x height. You take that figure and this finds the area.
You then multiply by 2 for the amount of plants.
We can use the equation A = 1/2 b * h P = A * 2
Step-by-step explanation:
URGENT!!! The base of Prism A has an area of 80 ft square, and the base of Prism B has an area of 80 ft square. The height of Prism A is the same as the height of Prism B. Is the base of Prism A congruent to the base of Prism B. Explain.
Answer:
No because the base could be a different shape.
Step-by-step explanation:
Answer:198
Step-by-step explanation:
3x + 7 = 22
Solve for x.
Answer:
x=5
Step-by-step explanation:
step1: subtraction 7 from both sides (from 7 itself and 22)
step 2: divide both sides by 3
3x +7 =22
-7 =-7
3x=15
3x/3 = 25/3
x=5
In Exercises 1–4, find each sum or difference.
start fraction 5 over 10 end fraction minus start fraction 3 over 10 end fraction
A. one-fifth
B. start fraction 8 over 10 end fraction
C. start fraction 42 over 5 end fraction
D. one-tenth
Answer:
a 1/5
Step-by-step explanation:
because if you do 5/10-3/10 you get 2/10
then you simplify by 2 which means you do 2 divided by 2 which
is 1 then you do 10 divided by 2 which is equal to 5 so your
answer is indeed 1/5
PLEASE HELP I REALLY NEED IT!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Last year, the school library had a total of x books. Over the summer, the library acquired another 37 books and now has a total of 1,950 books. Which equation could be used to find x, the number of books the library had last year?
A.
1,950 + x = 37
B.
x + 37 = 1,950
C.
x - 37 = 1,950
D.
37x = 1,950
Answer: the answer is B
Step-by-step explanation:
PLEASE HURRY I NEED THE ANSWER FAST!!!
Relative minimum: The coldest temperature outside the car was -4°C.
The negative interval is: between the 110th and 170th kilometers, the outside temperature was below zero.
The increasing interval was: over the first 50 km, the temperature outside the car got warmer.
How to Interpret the Quadratic Graph?The relative minimum or maximum of a graph is:
A relative maximum point is a point where the function changes direction from increasing to decreasing (making that point a "peak" in the graph).
A relative minimum point is a point where the function changes direction from decreasing to increasing (making that point a "bottom" in the graph).
Thus, the relative minimum of the graph is -4°C.
The negative interval is between the 110th and 170th kilometers, the outside temperature was below zero.
The increasing interval was over the first 50 km, the temperature outside the car got warmer.
Read more about Quadratic Graph at: https://brainly.com/question/14477557
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The question is attached!
Answer:
136°
Step-by-step explanation:
the answer is 136°
I hope it helped
Can someone help me solve this? Pls and ty!
Answer:
H. 95°
Step-by-step explanation:
m∠BGC is 10° smaller than m∠CGD, which means that m∠BGC is x° - 10°
m∠DGE is 25° more than m∠EGF, which means that m∠DGE is x° + 25°
The sum of all angles in a placement like this will always equal 360°
So we put all the measures of all angles on one side of thee equation and set it equal to 360*
x° + x° - 10° + 2x° + 25° + 2x° + 3x° + 30° = 360°
After combining like terms we get 9x° + 45° = 360°
After some algebra we get x = 35°
Now at the start we said that m∠DGE is x + 25°
Plug in 35° for x and we get 35° + 25°
The final answer is m∠DGE = 95°
Edit: Sorry if my answer looks a bit confusing. This is actually my first answer on Brainly so I'm quite new to this experience.
Keisha sees on a scale that 32 ounces is the same as 2 pounds. Complete the table to show the number of ounces in different numbers of pounds.
Number of ounces a 32 48 b c d
Number of pounds 1 2 3 4 5 6
a=
b=
c=
d=
Answers:
a = 16
b = 64
c = 80
d = 96
Step-by-step explanation:
1 pound = 16 ounces so, 16 ounces = 1 pound
(a) 1 pound x 16 = 16 ounces
(b) 4 pounds x 16 = 64 ounces
(c) 5 pounds x 16 = 80 ounces
(d) 6 pounds x 16 = 96 ounces
Nell’s mom makes chocolate milk with 30 mL or chocolate syrup for every 2 ounces of milk. Mell’s dad adds 65 mL of chocolate syrup for every 5 ounces of milk. Whose chocolate milk is more chocolatey? Show your work. Choose 1 answer. A. Nell’s mom B. Nell’s dad C. The two chocolate milks are equally chocolatey
Answer:
15<13
Step-by-step explanation:
What is the solution to the equation?
9/10 x+4/5=28.3
choices:
x=133/5
x=275/9
x=97/3
Answer:
x = 275/9
Step-by-step explanation:
PLS HELP ASAP
A die is rolled twice.
Which answer correctly describes the probability of the die landing on a number greater than 6, and then a 3?
impossible
unlikely
even
Answer:
impossible
Step-by-step explanation:
There is no number on a die greater than 6.
what is 48 x 3/8 is equal to
Answer:
18
Step-by-step explanation:
Answer:
18
Step-by-step explanation:
There are a few ways to go about solving this equation but I will not show them all.
Step 1:
For this step divide you 3/8
this would get you with 0.375
Step 2:
For this step, you now multiply your 0.375 by 48, like this (48 x 0.375).
This should get you with the answer 18
I hope this helps! :)
The minute hand on a clock is 15cm long. what area does it pass over in 1 hour (pls show working)
Answer:
the 12 on the clock
Step-by-step explanation:
Answer:
94.2cm in 1 hour.
Step-by-step explanation:
In 1 hour, minute hand completes one round means makes a circle.
Radius of the circle(r)=15cm
Circumference of circular clock=2πr
=2×3.14×15=94.2cm
Therefore, the tip of the minute hand moves 94.2cm in 1 hour.
Write a problem you can solve using the fractions 5/8 and 1 2/7. Explain how you can solve by simplifying a complex fraction. Show your work.
PLS HELP!! I WILL GIVE BRAINLY!
Answer:
5/8 + 9/7 +107/56
Step-by-step explanation:
5/8+9/7=5x7/8x7+ 9x8/7x8=35/56 + 72/56= 35+52/56=107/56
The simplified version of this would be 1 51/56
PLEASE MARK AS BRAINLIEST!!!!!
The sum of the two given fractions is 107/56.
The given fractions are 5/8 and 1 2/7.
We need to find the sum of given fractions.
What is the sum of the fractions?When the denominators are different, the fractions are called, unlike fractions. In such fractions, the first step is to convert them to like fractions so that the denominators become common. This is done by finding the least common multiple (LCM) of the denominators.
Now, we can write 1 2/7 as 9/7.
So, 5/8 + 9/7
Here, LCM of 8 and 7 is 56
Then, 35/56 + 72/56
=(35+72)/56
=107/56
Therefore, the sum of the two given fractions is 107/56.
To learn more about the addition of two fractions visit:
https://brainly.com/question/21495400.
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Show work. Due in 5 hours.
Answer:
Part A:
6 feet
Part B:
Around 9.17 feet
Part C:
Around 3 feet
Step-by-step explanation:
Part A:
The Pythagorean Theorem (which is a^2 + b^2 = c^2), is the simpilist way to solve this. a = 8; c = 10. so, the problem becomes (64 + b^2 = 100). Subtract 64 from both sides to get (b^2 = 36). Square root both sides to get (b = 6).
Part B:
Using the same method, but with different measurements:
(a^2 + b^2 = c^2)
(16 + b^2 = 100)
(b^2 = 84)
(b = 9.17)
Part C:
The difference of 9.17 and 6 is 3.17. Therefore, the closest foot is 3. Hope this helps! Have a great day! :)
Use the bar graph to find the relative frequency of the event.
The relative frequency of spinning an even number is
Answer:
.48
Step-by-step explanation:
all events add up to 50
all even events add up to 24
24/50
Help pls. I'll mark as brainlist.
1 feet = 12 inches
So, it's proportional2. The number of cookies baked and the minutes in the ovenSo, it's not proportional3. One bread needs a fixed grams of flourSo, it's proportional4. Since s = vtSo, it's proportional5. One gallon of gasoline cost's a fixed prince.So, it's proportionalNote : We just need to judge whether it accords with "y = kx"
{Proportional relationship}
Find the volume of a prism. Show your work.
Answer:
Step-by-step explanation:
11 times 22
the area of its cross-section multiplied by the length
answer: 242cm squared
PLEASE ANSWER QUICK One year, the population of a city was 164,000. Several years later it was 182,040. Find the percent increase.
Answer:
There was an 11% increase.
Step-by-step explanation:
The formula to find a percent increase is this: (original amount - new amount / original amount) * 100
If you fill in the formula, you get this:
(164,000 - 182,040 / 164,000) * 100
Solve:
(-18,040 / 164,000) * 100 ---> If the number being divided is negative, find the absolute value.
(18,040 / 164,000) * 100 =
0.11 * 100
11%
Who is Keisha Alexinne Bertulfo
Answer:
i dont know
Step-by-step explanation:
A right triangle is drawn on graph paper. The length of the legs measure 1.5 centimeters and 2 centimeters. The length of the hypotenuse measures 2.5 centimeters. Write an equation using the triangle’s side lengths to show the Pythagorean Theorem holds true for the triangle.
The Pythagorean Theorem states that in a right triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the other two sides.
In this case, let's denote the lengths of the legs as a = 1.5 centimeters and b = 2 centimeters, and the length of the hypotenuse as c = 2.5 centimeters.
The equation using the triangle's side lengths to show the Pythagorean Theorem holds true for the triangle is:
a^2 + b^2 = c^2
Substituting the given values, we have:
(1.5)^2 + (2)^2 = (2.5)^2
2.25 + 4 = 6.25
6.25 = 6.25
Therefore, the equation holds true, confirming that the Pythagorean Theorem is satisfied for the given right triangle.
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Noah’s recipe for sparkling orange juice uses 4 liters of orange juice and 5 liters of soda water. a.Noah prepares large batches of sparkling orange juice for school parties. He usually knows the total number of liters, , that he needs to prepare. Write an equation that shows how Noah can find , the number of liters of soda water, if he knows . b.Sometimes the school purchases a certain number, , of liters of orange juice and Noah needs to figure out how much sparkling orange juice he can make. Write an equation that Noah can use to find if he knows .
Answer: x = T - 4
T = y + 5
Step-by-step explanation:
a. To find the number of liters of soda water (x) if Noah knows the total number of liters (T) of sparkling orange juice he needs to prepare, the equation can be written as:
x = T - 4
b. To find the number of liters of sparkling orange juice (T) Noah can make if the school purchases a certain number of liters of orange juice (y), the equation can be written as:
T = y + 5
In both equations, x represents the number of liters of soda water, T represents the total number of liters of sparkling orange juice, and y represents the number of liters of orange juice.
Use the best-fit line below to predict the value of y when x = 7
Answer:
the answer is 6 because when x=7 on the line it is also equal to 6 on the y axis