Jordan's activity tracker showed that when she walked for 12 minutes she took 804 steps. Karen's activity tracker showed that she walked 2,100 steps in 32 minutes. Who was walking at a faster rate?

Given:

Jordan's walked for 12 minutes she took 804 steps.

Karen's walked 2,100 steps in 32 minutes.

To find:

Who was walking at a faster rate?

Solution:

We need to find the unit rate of Jordan and Karen.

Unit rate of Jordan,

Unit rate of Karen,

Clearly, 67 > 65.625.

Since, unit rate of Jordan is greater, therefore she walked faster.

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:

30 feet

step-by-step explanation:

that would be 2 1/2 * 12

= 24 + 6

= 30 feet   (answer)