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Artyom0805 [142]
2 years ago
13

Marcel made an error when he used the distributive property to solve the problem shown. Which sentence describes the error? In S

tep 2, 90 should be multiplied by the quantity 10 – 12, not by 10. 10 was substituted for x at the wrong step. In Step 1, the expression should be x(90 – 12) not 90(x– 12). There should be no parentheses in Step 1. It should be 90 • x – 12.
Mathematics
1 answer:
nordsb [41]2 years ago
3 0

The picture with the complete question is attached below :

Answer:

In Step 2, 90 should be multiplied by the quantity 10 – 12, not by 10

Step-by-step explanation:

90 * x - 90 * 12 = 90(x - 12)

From the question, x = 10

Hence,

90(10 - 12)

(90* 10) - (90 * 12) - - - > correct evaluation

900 - 1080

= - 180

Hence, both values in the bracket, that is 10 and - 12 should be multiplied by 90. Not just 10 alone.

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Comment

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