Susie works out in the gym three times a week. her heartbeat
increased to 94 beats per minute during one workout. if she
maintained this rate for 25 minutes, how many times did her heart
beat during the 25-minute workout?

Step-by-step explanation:

94 beats per minute during one workout.

If the rate was maintained for 25 minutes, the heart beats = 94×25

= 2350 beats

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so: