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iVinArrow [24]
3 years ago
13

A mother is 30 years older than her son. Fifteen years ago the son was 1/3 of

Mathematics
2 answers:
nalin [4]3 years ago
8 0

Let s be the son's age 15 yeasr ago and m the mother's age that year.

s = \dfrac{m}{3}

We also know that:

m = s+30

Plotting vallues:

s = \dfrac{m}{3}\\\\\\3s = s+30\\\\2s = 30\\\\s = 15\\\\m = 45

Remember that they were that age 15 years ago.

So their actual age is 30 and 60.

Ugo [173]3 years ago
8 0

nevermind that was wrong

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Answer:

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Step-by-step explanation:

1.85 divided by 5 is .37

3.12 divided by 8 is .39

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7 0
3 years ago
Jenny and Hanan are collecting clothes for a clothing drive. Hanan collected 1/2 as many bags of clothes as Jenny did. If Jenny
Montano1993 [528]

Answer:

Hanan collect \frac{3}{8} of a bag of clothes

Step-by-step explanation:

Let

x ------> amount of clothing bag that Jenny collected

y ------> amount of clothing bag that Hanan collected

we know that

y=\frac{1}{2}x -----> equation A

x=\frac{3}{4} -----> equation B

Substitute equation B in equation A

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y=\frac{3}{8}

therefore

Hanan collect \frac{3}{8} of a bag of clothes

5 0
3 years ago
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