Topic: Age Problems1. A boy is 5 times as old as his sister. Two years

1.	Topic: Age Problems1. A boy is 5 times as old as his sister. Two years ago the sum of the squares oftheir ages was 170. Find the present age of sister.
Answer» ANSWER: B=5S Now (B-2)^2 +(S-2)^2 =170 Step-by-step explanation:* So (5s-2-2)^2 +(s-2)^2 =170 so (25s^2+16-40s) +(s^2+4-4s) =170 so 26s^2+20-44s =13s^2+10-22s=170 so13 s SQUARE - 22s-160=0 Then i don't KNOW.

Topic: Age Problems1. A boy is 5 times as old as his sister. Two years ago the sum of the squares oftheir ages was 170. Find the present age of sister.

Answer»

ANSWER:

B=5*S

Now (B-2)^2

+(S-2)^2

=170

Step-by-step explanation:

So (5s-2-2)^2

+(s-2)^2

=170

so (25s^2+16-40s)

+(s^2+4-4s)

=170

so 26s^2+20-44s

=13s^2+10-22s=170

so13 s SQUARE - 22s-160=0

Then i don't KNOW.

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Topic: Age Problems1. A boy is 5 times as old as his sister. Two years ago the sum of the squares oftheir ages was 170. Find the present age of sister.​

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Topic: Age Problems1. A boy is 5 times as old as his sister. Two years ago the sum of the squares oftheir ages was 170. Find the present age of sister.