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torisob [31]
3 years ago
12

Please solve for y y(a-b)=c(y+a)

Mathematics
1 answer:
jeka57 [31]3 years ago
5 0

Answer:

Step-by-step explanation:

y(a-b)=c(y+a)

y(a-b)=cy+ca

y(a-b)- cy= ca

y(a-b-c) = ca

y = ca / (a-b-c )

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How much money did she have at first
romanna [79]

Step-by-step explanation:

x = the total money she had first.

x - x×1/4 - (x - x×1/4)×1/2 = 15

you see, first we needed to deduct 1/4 of x from x. that left us with (x - x×1/4). and from that we need to deduct 1/2.

now, we can simplify :

(x - x×1/4) = (x×4/4 - x×1/4) = x×3/4

x×3/4 - x×3/4 × 1/2 = 15

x×3/4 - x×3/8 = 15

we multiply both sides by 8 (4 is a factor of 8, so this handled both fractions perfectly) :

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7 0
3 years ago
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oksano4ka [1.4K]
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5 0
3 years ago
If the point (4,-2) is included in a direct variation relationship, which point also belongs in this direct variation? A. (-4,2)
IceJOKER [234]

Answer:

(-4,2) belongs in this direct variation.

Step-by-step explanation:

Let the direct variation relationship is expressed by the equation y = mx ........ (1), where x and y are in direct variation and k is the variation constant.

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6 0
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Ierofanga [76]

Answer:

The answer is (2,4)

hope this is helpful :)

6 0
3 years ago
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