Question

Is this correct?

Russel is 3 1/2 times older than Krystal. The equation that represents this situation is r=3 1/2k where r represents Russell's age, and k represents Krystal's age.

Based on the equation given, which statement is true?

Russell is 22 and Krystal is 77.


Russell is 33 1/2 and Krystal is 30.


Russell is 42 and Krystal is 12.


Russell is 66 and Krystal is 64 1/2.

Russell is 42 and Krystal is 12.

Answer 1

is it the third one?

Answer 2

it's not the second one

Answer 3

Simply take each of the ages given for Krystal and multiply by 3.5

The problem tells us Russell is older, so we can throw out any answers where Russell's age < Krystal's.

Process of elimination, multiply Krystal's age by 3.5 and we get answer 3. Russell = 42, Krystal = 12