cydma778 cydma778
  • 20-11-2020
  • Mathematics
contestada

Who solved the problem incorrectly, and where was the first mistake made?

Who solved the problem incorrectly and where was the first mistake made class=

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coradwhite823
coradwhite823 coradwhite823
  • 20-11-2020

Answer:

B

Step-by-step explanation:

20 × 30 = 600

30 × 6 = 180

5 × 6 = 30

but 20 × 5 doesn't equal 10

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getyomoneybad
getyomoneybad getyomoneybad
  • 20-11-2020

Answer: B

explanation: mariah was doing it right until she multiplied 20x5. she put 10, which is wrong. it’s 100

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