Question

Tracy can jump rope 26 times in 1 minute. How many times can she jump rope in 90 seconds?

Answer 1

Since Tracy can jump rope 26 times in a minute, we can make a equation.

• $1\:minute=60\:seconds$

Now here is our equation

$\frac{26}{60} =\frac{x}{90}$

cross-multiply

$60x=2340$

do simple algebra and divide

$x=39$

Tracy can jump rope 39 times in 90 seconds.