GraceLove30 GraceLove30
  • 14-02-2017
  • Mathematics
contestada

Which expression is equivalent to 21 + 49?

A 7(3 + 49)

B 7(3 + 7)

C 7(14 + 42)

D 7(14 + 49)

Respuesta :

savagesavvy1
savagesavvy1 savagesavvy1
  • 14-02-2017
the answer would be b because 3+7 is 10 and multiple that by 7 is 70. and 20 plus 49 is 70
Answer Link
jodeelhyn
jodeelhyn jodeelhyn
  • 14-02-2017
It would be the second choice, B. 7(3+7) because when you distribute, you get 21+49, because 7x3=21 and 7x7=49.
Answer Link

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