Write an expression that is equivalent to three over five (3y + 15).

Answers

Answer 1

Answer: 3/5 (3y + 15)=
9/5y + 45/5=

9/5y + 9 (equivalent expression)

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Juanita wrote 3 x 47 as 3 x 40 + 3 x 7. Which property did she use to rewrite the expression?

Answers

distribute proporty
a(b+c)=ab+ac
3=a
b=40
c=7
3(40+7)=3*40+3*7

Can anyone help me with this one? i don't understand this worksheet at all.

Answers

12^-6/12^7

When dividing the only thing you do is subtract the exponents from each other.

-6-7

In this case, you have to subtract a number from a negative. -6-7 would actually be -6+-7.

-6+-7= -13

12^-13 is the final answer

which expression is equivalent to 2m(3/2m+1) +3 (5/3m-2) ? A .3m^2+5m-1 B. 3/4m^2 +23/9m-6 C. 3m^2+7m-6 D. 3/4m^2+5/9m-1 please explain with steps

Answers

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

Minxia counted 40 green cars and 20 silver cars in the parking lot. If the number of green cars stays the same, how many more silver card would need to be added so the ratio of green cars to silver cars is 1 to 3?

Answers

The number of silver cars that need to be added will be 100.

What are ratio and proportion?

A ratio is a group of sequentially ordered numbers a and b expressed as a/b, where b is never equal to zero. When two objects are equal, a statement is said to be proportional.

Minxia counted 40 green vehicles and 20 silver vehicles in the parking garage. On the off chance that the quantity of green vehicles remains something similar.

Let 'x' be the number of silver cars that need to be added.

If the ratio of green cars to silver cars is 1: 3. Then the number of silver cars that need to be added will be given as,

40 / (x + 20) = 1 / 3

Simplify the equation, then we have

40 / (x + 20) = 1 / 3

(x + 20) = 40 x 3

x + 20 = 120

x = 100

The number of silver cars that need to be added will be 100.

More about the ratio and the proportion link is given below.

brainly.com/question/14335762

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What I did is that: I multiply 40 by 3 because 40 is 1/3 and I have to find the answer for 3/3 (Confusing, sorry I don't know how to explain it correctly). I got 120, subtract 20 from 120 beacause ther is 20 silver cards. The answer is 100

If 300% of 0.18 is equivalent to 20% of b, then b is equivalent to what number?

Answers

B is equivalent to 270.

What is pencentage?

The calculation of per cent i.e., per 100 is known as percentage.

How to calculate percentage?

Here, 300% of 0.18 is equivalent to 20% of b

or, 300%*0.18=20%*b

or,54=b/5

or, b=270

Learn more about percentage here :

brainly.com/question/2236179

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Answer:

2.7

Step-by-step explanation:

3*0.18=0.54

0.54/0.2=2.7

I need this ASAP!!Which of the following best describes the first step in solving the system below using elimination?
2x - 4y = 9
x+3 = -4y
A. solve the second equation for X
B. rearrange the second equation to read x+4y = -3
C. rearrange the second equation to read x + 4y =
D. add the equations together

Answers

Answer:

The answer is: to rearrange the second equation by adding "4y" to both sides and subtract 3 from both sides so it reads: x + 4y = -3

Please notice that two options that you presented read kind of similar (so there may be a typo). Make sure that you select the options you were given that aligns to the answer shown above.

Step-by-step explanation:

In order to solve a system of equations via the elimination method, the first step is to write both equations in standard form. That is, with the terms containing variables on the left, (and alphabetically ordered by they variables), and the pure numerical term on the right hand side of the equal sign.

In our case, since the first equation is already written in standard form, to rearrange the second equation by adding "4y" to both sides and subtract 3 from both sides so it reads: x + 4y = -3

Answer:

Step-by-step explanation:

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