Concept explainers
(a)
Write an expression to show how many more miles Kimika rode than Celeste.
(a)
Answer to Problem 12IP
Explanation of Solution
Given:
The expression 5.5x + 2 represents the number of miles Celeste rode her bike, and 10x represents the number of miles that Kimiko rode her bike, in x hours.
Concept Used:
An expression to show how many more miles Kimiko rode than Celeste = Number of miles Kimiko rode − Number of miles Celeste rode
Calculation:
An expression to show how many more miles Kimiko rode than Celeste = Number of miles Kimiko rode − Number of miles Celeste rode
Celeste rode = (5.5 x + 2) miles and Kimiko rode = 10x miles
Expression:
Thus, an expression to show how many more miles Kimiko rode than Celeste is
(b)
If they each rode for 2 hours, find how many more miles Kimiko did ride.
(b)
Answer to Problem 12IP
Kimiko rode 7 miles more than Celeste.
Explanation of Solution
Given:
The expression 5.5x + 2 represents the number of miles Celeste rode het bike, and 10x represents the number of miles that Kimiko rode her bike, in x hours.
Concept Used:
An expression to show how many more miles Kimiko rode than Celeste is
Calculation:
An expression to show how many more miles Kimiko rode than Celeste is
Kimiko rode
If x = 2, then
Thus,Kimiko rode 7 miles more than Celeste.
Chapter 7 Solutions
Glencoe Math Accelerated, Student Edition
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