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Rashid [163]
3 years ago
14

I need help this is 7th grade work

Mathematics
1 answer:
olga_2 [115]3 years ago
8 0

Answer:

b

Step-by-step explanation:

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Solve the equation 3x + 5y = 15 for y.
Naddika [18.5K]

Answer:

y=\frac{-3}{5}x+3

I don't see this in any of your choices.

Please be sure the problem and choices are as you want them to be seen by others. Thanks kindly.  

I do hope my answer is helpful.

Step-by-step explanation:

3x+5y=15

We want to get the term that contains y by itself.

This means we want to get 5y by itself first.

To do this I need to get rid of the plus 3x on that side.

I will do the inverse operation of that; I will subtract 3x on both sides.

3x+5y=15

-3x             -3x

5y=15-3x

5y=+15-3x

5y=-3x+15 since addition is commutative.

Now we have the 5y term by itself. We want the factor y in 5y by itself.

To undo multiplication you must divide.  We will divide both sides by 5:

5y=-3x+15

------------------------------

            5

\frac{5y}{5}=\frac{-3x+15}{5}

y=\frac{-3x}{5}+\frac{15}{5}

y=\frac{-3}{5}x+3

7 0
3 years ago
Expand completely using the Binomial Theorem<br> (3y - x)^4
AleksAgata [21]

Answer:

In standard form it is x^4 - 12x^3y + 54x^2y^2 - 108x y^3 + 81y^4.

Step-by-step explanation:

(3y)^4 + 4C1(3y)^3(-x) + 4C2(3y)^2(-x)^2 + 4C3(3y)(-x)^3  + (-x)^4

= 81y^4 - 108y^3x + 54y^2x^2 - 12yx^3 + x^4

4 0
3 years ago
Two thirds of a number, decreased by thirty six, is at most twenty two. Find the number.
Naily [24]
2/3x - 36 ≤ 22
        +36     +36
----------------------
2/3x ≤ 58
2x ≤ 174
x ≤ 87

Hope this helps!
        
4 0
3 years ago
39-53 this is very important for my grades
Lisa [10]
Use photomath , its easier it tells you the steps
7 0
4 years ago
Read 2 more answers
Which ordered pair is a solution of the equation?
olasank [31]

Answer:C

Step-by-step explanation:

cause I say so.

6 0
3 years ago
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