Which expression is equivalent to 21 + 49? A 7(3 + 49) B 7(3 + 7) C 7(14 + 42) D 7(14 + 49)

asked May 25, 2018 170k views

4 votes

Which expression is equivalent to 21 + 49?

A 7(3 + 49)

B 7(3 + 7)

C 7(14 + 42)

D 7(14 + 49)

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2 votes

the answer would be b because 3+7 is 10 and multiple that by 7 is 70. and 20 plus 49 is 70

Billy Boyo answered May 27, 2018

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4 votes

It would be the second choice, B. 7(3+7) because when you distribute, you get 21+49, because 7x3=21 and 7x7=49.

Kamika answered May 29, 2018

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