The Number System Unit Test

Question

Math 8 Q1 (Pre-Algebra) / The Number System

A sign in a gas station advertises gas at the rate of $3.39 9/10 per gallon. How many dollars does a gallon cost, writing the price strictly as a decimal?(1 point)

Answer 1

To write the price strictly as a decimal, we can convert the fraction part to decimal form.

Since 9/10 is equivalent to 0.9 in decimal form, we can add it to the whole number part, $3.39, to find the total cost per gallon.

$3.39 + 0.9 = $<<3.39+0.9=4.29>>4.29

Therefore, a gallon costs $4.29.