A sign in a gas station advertises gas at the rate of $3.39- to per gallon. How many dollars does a gallon cost, writing the price strictly as a decimal?
The correct way to express the price as a decimal is $3.39.
To write the price strictly as a decimal, we need to remove the hyphen between $3.39 and "to." The correct price without the hyphen is $3.39. Therefore, a gallon of gas costs $3.39.
To determine the cost of a gallon of gas in decimal form, we need to subtract the two numbers indicated on the sign (the upper and lower bounds of the price range) and divide the result by 2.
Given the sign's statement: $3.39- to per gallon
First, subtract the lower bound from the upper bound:
$3.39 - $ to = $3.39
Divide the result by 2:
$3.39 / 2 = $1.695
Therefore, a gallon of gas costs $1.695, written strictly as a decimal.