What property was applied to solve the equation below?
0.36 x = negative 1.8
0.36 (divided by 0.36) x = negative 1.8 (divided by 0.36)
x = negative 5
Answers
Answer:
Division property
Step-by-step explanation:
The property which states that we can divide both side of the equation by the same non-zero number is called the division property of equality.
The goal of dividing an equation is to isolate the unknown variable on one side.
For example, let the equation be:
2×x=10
Since the unknown variable x is being multiplied by the number 2, to isolate the variable an inverse operation needs to be applied - division:
2×x÷2=10÷2
Careful! Never forget to write the same operation on both sides of the equation! When doing so, the solution of the equation stays the same, i.e. we get an equivalent equation.
Step-by-step explanation:
Related Questions
Help me giving brainliest
Answers
Answer:6 hours
Step-by-step explanation:
6+5+5+4+10=30/5=6
Answer:
A. 6 hours
Step-by-step explanation:
The mean is another term for the average.
Add all the numbers together6 + 5 + 5 + 4 + 10 = 30
Divide by the number of numbers that are given.There are 5 numbers given --> 6, 5, 5, 4, 10
30/5 = 6
A 2 column table with 5 rows. The first column, yards of red fabric, x, has the entries 1, 2, 3, 4. The second column, yards of blue fabric, y, has the entries 27, 26, 25, 24. Sophie is buying fabric to make items for a craft fair. The table shows some combinations of how much of each color fabric she might buy. Which equations model the total yards of fabric Sophie will buy? Check all that apply. x+y=28 28+x=y x-y=28 28-x=y 28-y=x
Answers
The correct answer would be options (A), (D), and (E)
x + y = 28
28 - y = x
28 - x = y
What is the equation?The equation is defined as mathematical statements that have a minimum of two terms containing variables or numbers that are equal.
The first column, yards of red fabric, x, has the entries 1, 2, 3, 4.
The second column, yards of blue fabric, y, has entries 27, 26, 25, and 24.
Sophie is buying fabric to make items for a craft fair.
when substitute x = 1 and y = 27
⇒ x + y = 1 + 27 = 28
So the equations model the total yards of fabric Sophie will buy as
⇒ x + y = 28
⇒ 28 - y = x
⇒ 28 - x = y
Hence, the correct answer would be options (A), (D), and (E)
Learn more about the equation here:
brainly.com/question/10413253
#SPJ2
HELP ASAP!! A student is painting a brick for his teacher to use as a doorstop in the classroom. He is only painting the front of the brick. The vertices of the face are (−4, 2), (−4, −11), (4, 2), and (4, −11). What is the area, in square inches, of the painted face of the brick?
A. 42 in2
B. 52 in2
C. 104 in2
D. 128 in2
Answers
Answer:
104in2
Step-by-step explanation:
The area, in square inches, of the painted face of the brick is Option C 104 \(in^{2}\).
Using the Quadrant system of the Number line
B (-4,2) lies in the 2nd quadrant.
C (-4,-11) lies in the 3rd quadrant
A (4,2) lies in the 1st quadrant
D (4,-11) lies in the 4th quadrant
Length of Side AB= Length of Side CD= Distance between x coordinate of A & B OR Between C & D i.e. 8 in
Length of Side BC= Length of side AD= Distance between y coordinate of A & D OR Between B & C i.e. 13 in
Area of the Square ABCD= (length of Side AB or CD) X (Length of Side BC or AD)
= (8 x 13) \(in^{2}\)
= 104 \(in^{2}\)
Thus, Area of square is 104 \(in^{2}\).
To learn more about area: https://brainly.com/question/25292087
Special Pairs of angles and Classifying Triangles (PLEASE HELP)
Answers
Answer for Practice 8-4:
1. Right, Scalene
2. Acute, Isosceles
3. Obtuse, Scalene
4. Isosceles
5. Scalene
6. Equilateral
7. Scalene
8. Acute
9. Obtuse
10. Right
11. Right
12. This cannot be done because a right triangle always has two acute angles (cannot be right-angled and obtuse-angled at the same time)
14. Can't be done because a scalene triangle has no congruent sides, while isosceles triangles have two equal sides and two equal angles.
I am currently 13 times as old as my granddaughter. Next year, I will be 11 times as old as my granddaughter. How old am I now?
Answers
Answer:
65 years old.
Step-by-step explanation:
Define the variables:
Let x be the age of the granddaughter.Let y be the age of the grandparent.Given:
I am currently 13 times as old as my granddaughter. Next year, I will be 11 times as old as my granddaughter.Create two equations with the given information and defined variables:
\(\begin{cases}y = 13x\\y + 1 = 11(x + 1)\end{cases}\)
Substitute the first equation into the second equation and solve for x:
\(\implies 13x+1=11(x+1)\)
\(\implies 13x+1=11x+11\)
\(\implies 2x=10\)
\(\implies x=5\)
Substitute the found value of x into the first equation and solve for y:
\(\implies y=13(5)\)
\(\implies y=65\)
Therefore, the age of the grandparent now is 65 years.
Given statements:
I am currently 13 times as old as my granddaughter. Next year, I will be 11 times as old as my granddaughter.Let us represent the character's age by variables. Assuming that the grandparent's age is G and the granddaughter's age is D. Now, using the obtained variables and the statements, create two equations that represents the provided statements. Then, we can compare the equations and simplify if needed to determine the value of the variables.
\(\implies \left[\begin{array}{ccc} \text{G = 13D} \\ \text{G + 1 = 11(D + 1)}\\\end{array}\right]\)
Since G = 13D is in the form of direct variation, we can substitute the value of G into the second equation to determine the value of D (the age of the granddaughter). Then, we can substitute the value of D into any of the two equations to determine the age of the grandparent.
⇒ G + 1 = 11(D + 1)⇒ G + 1 = 11(D + 1) [G = 13D]⇒ 13D + 1 = 11(D + 1)To solve for D, simplify both sides of the equation by using the distributive property. We need to simplify both sides of the equation so that we can isolate the variables on the other side of the equation.
⇒ 13D + 1 = 11(D + 1)⇒ 13D + 1 = 11D + 11Isolate the variables on one side. This step is necessary because it can cancel out the extra variable and simplify the other variable. To do this, you can either add or subtract on both sides of the equation.
Note: I am subtracting 11D on both sides of the equation since it is my preference. But you can also subtract 13D on both sides of the equation.
⇒ 13D + 1 - 11D = 11D + 11 - 11D⇒ 1 + 2D = 11To further isolate 2D, we need to subtract 1 on both sides of the equation to cancel out the 1 on the left-hand side of the equation. Then, we have:
⇒ 1 + 2D - 1 = 11 - 1⇒ 2D = 10But the variable is still not completely isolated since there is a coefficient being multiplied to D. To isolate the coefficient from the variable, we will need to divide the coefficient (2) on both sides of the equation.
⇒ 2D = 10⇒ 2D/2 = 10/2Then, simplify both sides of the equation. Eventually, we will have a variable on one side and a numerical value on the other side.
⇒ 2D/2 = 10/2⇒ D = 5Now we know the age of the granddaughter, we can substitute the age of the granddaughter into one of the equations and simplify it to determine the age of the grandparent. I am going to choose G = 13D since it is easier to simplify. Then, we will substitute the value of D into the equation.
⇒ G = 13D ⇒ G = 13(5)⇒ G = 65 yearsTherefore, the age of the grandparent is 65 years.
The equation x^2+ ax = -14 has only integer solutions for x. If a is a positive integer, what is the greatest possible value of a?
Answers
Answer: 7
Step-by-step explanation:
At 78°F, a certain insect chirps at a rate of 106 times per minute, and at 81°F, they chirp 112 times per minute. Write an equation in slope-intercept form that represents the situation.
Answers
Answer:
y=2x-50
Step-by-step explanation:
\(m=\frac{y^2-y^1}{x^2-x^1} = \frac{112-106}{81-78} =\frac{6}{3} =2\)
slope-intercept formula(substitute 81 for x, 112 for y, and 2 for m:
y=mx+b
112=2(81)+b
112=162+b
Then subtract 162 from both sides, and b=-50
Plug in all numbers into original equation
y=mx+b m=2 b= -50
So u get y=2x-50
Answer:
y = (1/2)x + 25 or y = 0.5x + 25
Step-by-step explanation:
I used a online calculator that is reliable.
Can someone please solve this for me on paper and explain it? I'm offering 30 points? This is a Sixth-grade level question.
Answers
Answer:
Where is the Question? Are you joking around or a you for real
A computer company created this graph to show how many computers it expects sell based on how much money you spend on internet advertising. The company expects
sell 40 million computers, spending $5 million on Internet advertising. What set of units and scales are appropriate for the two axes?
Answers
Answer:
Horizontal axis will have number of computers in millions and vertical axis will have advertising dollars in millions.
Given information:
The graph of computer production and advertising amount spent is given in the question.
Total number of computer sell = 40 millions
Cost of internet advertising = $5 million
Now , by looking the graph one can conclude that, Y coordinate of the graph is 40 million and the X coordinate of the graph is $5 million.
Hence, from the above conclusion one can write as:
Horizontal axis (X-axis) is the number of computers and the Vertical axis is (Y-axis) the advertising cost of computers.
ILL GIVE BRAINLIEST !!
Simplify the expression: 48% of 2500 – {(73 × 8) /√196} – 15% of (80/3)
2500 का 48% – {(73 × 8) /√196} – (80/3) का 15%
(86/21.5)^2 + {36/(√9×2)}^2
(86/21.5)^2 + {36/(√9×2)}^2
TYVM :)
Answers
48% of 2500 - (73×8/√196) - 15% of 80/3
\( \sf\frac{48}{100} \times 2500 - ( \frac{73 \times 8}{ \sqrt{196} } ) - \frac{15}{100} \times \frac{80}{3} \)
\( \sf\frac{48}{1 \cancel{00}} \times 25 \cancel{00} - ( \frac{73 \times \cancel8}{ \cancel{14}} ) - \frac{ \cancel{15}}{ \cancel{100}} \times \frac{ \cancel{80}}{ \cancel{3}} \)
\( \sf1200 - \frac{73 \times 4}{7} - 4\)
\( \sf1200 - \frac{292}{7} - 4\)
\( \sf1196 - \frac{292}{7} \)
\( \boxed{ \tt \: \frac{8080}{7} \approx \: 1154.28}\)
Answer: 1154.286
Step-by-step explanation:
Which inequalities would have an open circle when graphed? Check all that apply.
t Less-than-or-equal-to 25
-2.5 Less-than-or-equal-to m
x > 5.4
One-half less-than x
x > 0
Answers
An open circle is used to graph strict inequalities, which means the inequality does not include the value at the boundary. The inequalities that would have an open circle when graphed are:
x > 5.4
One-half less-than x
x > 0
if an inequality states less than OR equal to that means the circle will be closed when graphed
HELP PLEASE I REALLY NEED HELP
Answers
First step is take it out of fractions and into decimals, they are easier to work with.
(0.5x1.125)x(2.66x3.33)x7.5
Then PEMDAS
Parentheses
0.625x-0.66x7.5
Then multiply
-0.41625x7.5
Answer
-3.121875
What is a successor and a predecessor?
Answers
Answer:
Predecessor" means an entity that is replaced by a successor-----Successor" means an entity that has replaced a predecessor by acquiring the assets and carrying out the affairs of the predecessor under a new name
Step-by-step explanation:
Answer:
successor is the number after
predecessor is the number before
Step-by-step explanation:
example: successor of 65 is 66
predecessor of 65 is 64
correct=brainliest
thanks and rate 5 stars
Answers
Answer: 1 is -16 and the second one is 125
Step-by-step explanation:
I said that because what you earned is what they give but when you spent you lose money.
Giving away 60 points, answer quick!!
What is the exact circumference of the circle?
Responses
10π ft
20π ft
40π ft
60π ft
Answers
Answer:
40π ft. is the circumference of the circle.
Step-by-step explanation:
1. Multiply the area by two (2). That is your answer.
Hope this works out for you!! :)
A small tree that is 5 feet tall casts a 3-foot shadow, while a building that is 45 feet tall casts a shadow in the same direction. Determine the length of the building's shadow.
A: 9 feet
B: 10 feet
C: 15 feet
D: 27 feet
Answers
5/3 = 45/x
To solve for x, we can cross-multiply and simplify:
5x = 135
x = 27
Therefore, the length of the building's shadow is 27 feet, which is option D.
You have $5 for lunch. You bought a turkey sandwich for $2.25.
A. Write an inequality that represents how much more money you can spend.
B. Solve your inequality.
Answers
So you either spend the whole 2.75 or you can spend less so your inequality would be 2.75 is greater than or equal to x
Answer:
$2.75 you have left to spend
Step-by-step explanation:
5 - 2.25 = 2.75
What is the surface area of this right rectangular prism with dimensions of 4 centimeters by 4 centimeters by 6 centimeters?
Answers
Answer:
128
Step-by-step explanation:
A=2(wl+hl+hw)=2·(4·4+6·4+6·4)= 128
How do I find the x to this picture
Answers
Answer:
x approximately equals 26.4
Step-by-step explanation:
\(C^{2}\) - \(B^{2}\) = \(A^{2}\)
\(29^{2}\) - \(12^{2}\) = 697
\(\sqrt{697}\) ≈ 26.4
a^2 + b^2 = c^2
12^2 + b^2 = 29^2
144 + b^2 = 841
b^2 = 697
Find the square root of 697
b= 26.4
What is the inverse of the function f(x) = 2x + 1?
Answers
Answer:
You can pick any inverse what is F?
Step-by-step explanation:
Answer:
(X-1) divided into 2 (x-1)/2
Step-by-step explanation:
f(x) is the same as y
switch places y and x
x = 2y+1
Solve for y
y= (x-1)/2
please helppppp meeeeee
Answers
Answer: The slope is 3 and the y-intercept is (0, -2)
Step-by-step explanation:
So y=mx+b right? and the m is the slope and b is the y intercept.
Answer:
slope = 3
y intercept = 0, -2
East Middle's football team was positioned on the 50 yard line. After a penalty is called, the football team is pushed back 5 yards. If East Middle's football team is charged with the same penalty 3 plays in a row, on what yard line is the football team positioned?
A. 65 yard line
B. 35 yard line
C. 25 yard line
D. 15 yard line
Answers
Answer:
The answer would be the 35 yard line.
Step-by-step explanation: This is because if they get a 5 yard penalty 3 times, that would be a total of 15 yards lost. So, you would do 50-15, getting 35, so boom, 35 yard line :)
plz help its timed...
Answers
Answer:
THE CORRECT ANSWER IS B
Step-by-step explanation:
Answer:
c is correct answer
I need help I mean you can tell me the formula and I can try and solve it or you can solve it I don't really care which one you pick but I need some help.
Answers
Answer:
V: LWH divided by 3
Step-by-step explanation:
V: lwh
V: 5(6)(9) ÷ 3 = 90
Answer:
90 is the Answer
please help me thanks
Answers
the first answer is 1.429624 × 1012
id know how to do the rest, sorry
help me this one plssssssssssss
Answers
Answer:
The integer that describes the translation from B to B' is (-2,1)
15 points: Is it possible for two numbers to have a difference of 6, and also a sum of 12?
T-T please help
Answers
Answer:
no it is not posibble
Step-by-step explanation:
Alexi bought 5 T-shirts for $12 each and 3 pairs of socks for $2 a pair. Which expression shows how much Alexi spent in dollars. Explain
a) 5 × 12 x 3 × 32
b) 5 × 12 + 3 × 32
c) (5+3) × (12 + 2)
Answers
Answer:
b
Step-by-step explanation:
so hope it help,have a nice day!
Alexi bought 5 shirts. Given that each of them costs 12 dollars, we can say that the equation for their price is:
12 + 12 + 12 + 12 + 12 or just 5 x 12
Now, Alexi also bought socks. 3 pairs of them, in fact. Given that each pair was an astounding 2 dollars, we would get this equation:
2 + 2 + 2 or just 3 x 2
Of course, Alexi bought these things together, so they must pay for both things. The total price would be
5 x 12 + 3 x 2 or 66 dollars
I've been trying to figure out how to factorize this:
3x + 2xy
Answers
Answer:
If in word then three x Plus two xy but then this would equal 5xy
Step-by-step explanation:
Can someone help, please
Answers
If you do this on a graph the rise is 5 the run is 6 and the fraction is rise/run so your answer would be 5/6