Question

The top of a table is a parallelogram with a base of 28 cm and a height of 20 cm. Patty wants to cover the table with tiles that have an area of 8 cm2 each. Jake wants to use tiles that have an area of 9 cm2 each. How many more tiles will Patty need than Jake to cover the table? Explain your answer.

Answer 1

Answer:

Patty will need 5 more tiles than Jake.

Step-by-step explanation:

8 = 2 × 4, 28 ÷ 2 = 14

9 = 3 × 3, 28 ÷ 3 = 9.3...

14 - 9 = 5

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Answer 2

Answer:

Patty would use about 7 more tiles than Jake.

Step-by-step explanation:

Sample response: The area of the top of the table is 28 × 20 = 560 cm2. The area of Patty’s tiles is 8 cm2 each and the area of Jake’s tiles is 9 cm2 each. Patty will need 560 ÷ 8, or 70, tiles. Jake will need 560 ÷ 9, or about 63, tiles. So, Patty will use about 7 more tiles.

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