Proportional or NAH?

Looking at the table, is the relationship between the Time (in months) and the Total Cost ($) proportional?

• Yes. The time goes up by 1 month and the total cost goes up by $10.

• Yes. When you divide the cost by the time, it is always the same.

• No. You add 1 on the top and 10 on the bottom. That is not the same.

• No. When you divide the total cost by the time, you get a different answer each time.

Tags

CCSS.7.RP.A.2A

Looking at the table provided, is the relationship between the money made and the hours worked proportional?

• Yes. When you divide the hours by the earnings, it is always 0.05.

• Yes. When you divide the earnings by the hour, it is always $20.

• No. When you divide the earnings by the hours, you get 20, 10, and 10.

• No. The top number goes up by 5 and then 7 and the bottom number goes up by 30 and then 70.

Tags

CCSS.7.RP.A.2A

To make a pitcher of Kool-Aid, is the cups of sugar proportional to the number of envelopes of mix needed?

• Yes. Every time you divide the # of envelopes by the cups of sugar, it is 2.

• Yes. When you divide the cups of sugar by the envelopes, it is 1/2.

• No. The numbers in the top row go up by a different amount than the numbers in the bottom row.

• No. If you divide the bottom number by the top, it is a different number each time.

Tags

CCSS.7.RP.A.2A

Is the number of quizzes graded proportional to the time it takes to grade them?

• Yes. You can grade 12 quizzes each hour.

• No. When you divide the quizzes by the hours, you don't get the same answer for each set of numbers.

• Yes. When I divide the hours by the quizzes, I get .083333.......

• No. The top number goes up by 2, 2, and then 3 and the bottom number goes up by 24, 24, 24.

Tags

CCSS.7.RP.A.2A

Is the number of bags proportional to the number of apples?

• Yes. When you divide the number of bags per apple, you always get 1/5.

• Yes. The apples go up by 5. The bags go up by 1.

• No. When you divide the bottom number by the top number it is a different number each time.

• No. The top numbers go up by 5 and and the bottom numbers go up by 1.

Tags

CCSS.7.RP.A.2A

Is the price of the chicken proportional to the number of pieces?

• Yes. It is always $2 for each piece of chicken.

• Yes. It is always $0.50 for a piece of chicken.

• No. The pieces of chicken go up and then down.

• No. The price goes up by 2 and the chicken goes up by 1.

Tags

CCSS.7.RP.A.2A

Is the weight proportional to the number of concrete blocks?

• Yes. When you divide the blocks by the weight it is 1/10.

• No. The number of blocks goes up by different amounts each time.

• Yes. It is 10 kilograms for each concrete block.

• No. When you divide the y by the x, you get different numbers each time.

Tags

CCSS.7.RP.A.2A