### Home > ACC6 > Chapter 4 Unit 4 > Lesson CC1: 4.1.1 > Problem4-7

4-7.

Croakie now has a new routine that is $59$ feet long. Keep this distance in mind as you complete parts (a) and (b) below.

1. In his new routine, Croakie makes seven super jumps, all the same length, and then hops $3$ feet. How long is each super jump?

Work backwards from 3 feet.

Before Croakie had to hop 3 feet, how far had he jumped?

If Croakie made $7$ jumps that were all the same length to go 56 feet, how long was each jump?

$59\ \text{feet}−3\text{ feet}=56\text{ feet}$

$\frac{56}{7}=8$

$8$ feet per jump

2. If $x$ represents the length of one super jump and $2x$ represents the length of two super jumps, write an expression that represents Croakie’s routine.

If you did $3$ super jumps and then walked 5 feet the expression would be $3x + 5$.