How do you write 5 is to 1 as 20 is to 4 as a proportion in fractional notation?(1 point)
Responses
5/1=20/4
5/1=4/20
5:1 :: 20:4
5/4=1/20
The correct answer is:
5/1 = 20/4
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
15:45::x:5
ratio of 15 to 45 colon colon ratio of x to 5
15x=455
Start Fraction 15 over x End Fraction equals Start Fraction 45 over 5 End Fraction
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
Skip to navigation
page 20 of 20
The correct answer is:
5/1 = 20/4
To write the proportion "5 is to 1 as 20 is to 4" in fractional notation, you need to set up two ratios and compare them.
The first ratio compares 5 to 1, so you write it as 5/1.
The second ratio compares 20 to 4, so you write it as 20/4.
So the proportion in fractional notation would be:
5/1 = 20/4