Question

Question You fill your car with 15 gallons of gas at a cost of $45. Using fractional notation, how do you write a proportion that shows how much 5 gallons of gas will cost? Use x to represent the unknown cost.(1 point) Responses 1545=x5 Start Fraction 15 over 45 End Fraction equals Start Fraction x over 5 End Fraction 1545=5x Start Fraction 15 over 45 End Fraction equals Start Fraction 5 over x End Fraction 15:45::x:5 ratio of 15 to 45 colon colon ratio of x to 5 15x=455

Answer 1

To set up a proportion to determine how much 5 gallons of gas will cost, you can use the given information about the cost of 15 gallons.

Given:
- 15 gallons of gas costs $45
- We want to find out how much 5 gallons of gas costs, represented by \( x \)

The proportion can be written in fractional notation as follows:

\[
\frac{15}{45} = \frac{x}{5}
\]

So the correct response is:

**Start Fraction 15 over 45 End Fraction equals Start Fraction x over 5 End Fraction**