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Harman [31]
3 years ago
7

X=y-8 and -x-y=0 solve by substitution

Mathematics
1 answer:
soldi70 [24.7K]3 years ago
7 0

Answer:

y=4

Step-by-step explanation:

x=y-8

-x-y=0

-(y-8)-y=0

Distribute the negative

-y+8-y=0

Combine the like terms

-2y+8=0

-8 (to both sides)

-2y=-8

Divide by -2

y=4

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satela [25.4K]

Answer:

<em>2 gallons </em>

Step-by-step explanation:

If Han used 1 1/2 gallons of paint to paint 3/5 of a shed, this can be expressed as;

1 1/2 gallons = 3/5 of the shed

3/2gallons = 3/5 of the shed

To find the number of gallons that will paint the whole shed, we will say;

x gallons = 1 shed

Divide both expressions

3/2/x = 3/5

3/2x = 3/4

2x * 3 = 3*4

6x = 12

x = 12/6

x = 2

<em>Hence 2 gallons will be needed for the whole shed</em>

3 0
3 years ago
A company is expanding its building area from 12,500 square feet to 16,750 square feet. What is the percentage increase of the a
mars1129 [50]

Answer:

I think it’s 34 percent. If not I’m so sorry- but I’m like 99.999999 percent sure about it. Also use percentage calculators they help a lottttt

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Step-by-step explanation:

4 0
3 years ago
699 x 39 whith steps pls
masha68 [24]

Answer:

699*39=27261

Step-by-step explanation:

699*39

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3 years ago
Justin is redoing his bathroom floor with tiles measuring 6 in x 13 in. The floor has area of 8500 inches squared. what is the l
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Then divide the area of the floor by the area of the tiles.

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