Question

PLEASE HELP ASAP WHICH ARE PROPORTIONAL!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Marian earns $7.50 per hour at her part-time job. Is the number of hours Marian works proportional to the amount she earns?

The area of a square can be found by squaring the length of one of its sides. For example, if a square has a side length of 5 centimeters, the square's area is 5, 2, square centimeters, or 25 cm, 2, . Is the side length of a square proportional to its area?

Rafael opens a savings account with an initial deposit of $50. Each week after that, he deposits $10 more. Is the number of weeks that have passed proportional to the amount in his account?


Noah is mixing yellow and red paint. For every 5 ounces of yellow paint he adds 4 ounces of red paint. Is the number of ounces of yellow paint proportional to the number of ounces of red paint?

Answer 1

• Marian earns $7.50 per hour at her part-time job. Is the number of hours Marian works proportional to the amount she earns?

→No, number of hours Marian works is not proportional to the amount she earns.

• The area of a square can be found by squaring the length of one of its sides. For example, if a square has a side length of 5 centimeters, the square's area is 5, 2, square centimeters, or 25 cm, 2, . Is the side length of a square proportional to its area?

→No, the side length of a square is not proportional to its area. Area is proportional to the square of the length.

• Rafael opens a savings account with an initial deposit of $50. Each week after that, he deposits $10 more. Is the number of weeks that have passed proportional to the amount in his account?

→Yes, the number of weeks that have passed is proportional to the amount in his account.

• Noah is mixing yellow and red paint. For every 5 ounces of yellow paint he adds 4 ounces of red paint. Is the number of ounces of yellow paint proportional to the number of ounces of red paint?

→Yes, the number of ounces of yellow paint is proportional to the number of ounces of red paint.

Answer 2

1. No. The number of hours are not proportional to her rate.

2. No, because area is squared it would not be proportional to the length of a side.

3. Yes, because he is adding the same anoint every week.

4. Yes, because he is adding the same amount of red for every increase in yellow.