Question

Select all of the correct answers.

5
Martin uses 8 of a gallon of paint to cover 5 of a wall. What is the unit rate at whi
walls per gallon
of a wall per gallon
1 walls per gallon
1. walls per gallon

Answer 1

Question:

Martin uses 5/8 of a gallon of paint to cover 4/5 of a wall. what is the unit rate at which Martian paints in walls per gallon

Answer:

0.78125 walls per gallon

Explanation:

Given

`Paint = (5)/(8)\ gallon`

`Wall = (4)/(5)`

Required

Determine the unit rate

This is calculated as:

`Unit\ Rate = (Wall)/(Paint)`

Substitute values for wall and paint

`Unit\ Rate = (5/8)/(4/5)`

Simplify:

`Unit\ Rate = (5)/(8)/(4)/(5)`

Change to *

`Unit\ Rate = (5)/(8)*(5)/(4)`

`Unit\ Rate = (5*5)/(8*4)`

`Unit\ Rate = (25)/(32)`

`Unit\ Rate = 0.78125`

Hence, the unit rate is: 0.78125 walls per gallon