Question

The expression 1.2x + 4 is the number of miles Angie jogged and 3x is the number of miles tom jogged in x hours. What is the expression to show how many more miles Tom jogged than Angie.

Answer 1

The expression that shows number of miles Tom jogged more than Angie is 1.8x - 4

Solution:

Given that expression 1.2x + 4 is the number of miles Angie jogged and 3x is the number of miles tom jogged in x hours

To find: Expression to show how many more miles Tom jogged than Angie

From given question,

number of miles Angie jogged = 1.2x + 4

number of miles tom jogged = 3x

Where "x" is the number of hours

Number of miles Tom jogged more than Angie = number of miles tom jogged - number of miles Angie jogged

Number of miles Tom jogged more than Angie = 3x - (1.2x + 4)

`\rightarrow 3x - (1.2x + 4) = 3x - 1.2x - 4\\\\\rightarrow 1.8x - 4`

Thus the expression that shows number of miles Tom jogged more than Angie is 1.8x - 4