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Knowledge Check
Question 3
C
Nicole is participating in a 5-day cross-country biking challenge. She biked for 48, 54, 47, and 50 miles on the first four days. How many miles does she need to
bike on the last day so that her average (mean) Is 51 miles per day?

the least value out of the data shown is 5, maybe if you post a picture with it i could a little more.

step-by-step explanation:

proportions are fractions that equal to each other. so if two fractions are the same, they are proportional.

let's check the answers to see if they are proportional.

question a is not proportional because you can't turn 1.5/3 to 3/9. if you try to multiply 1.5/3 by 2 or 3, you wont get 3/9. it's impossible to make the fractions the same.

question b is not proportional because you can't turn 22/33 to 4/6. 33 can't go into 6.

question c is proportional because when you multiply 2 and 3 by 71, you would get 142/213, and those fractions equal to each other

question d is proportional because when you divide 14 and 7 by 2, you would end up with 7/3.5, and those fractions equal to each other.