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3 years ago

Alana incorrectly simplified the expression (-14a + 12) - (-10a + 13) as -24a + 25 describe her error

Mathematics

1 answer:

ICE Princess25 [194]3 years ago

7 0

Answer:

The answer should be -4a-1. This is because you have to open the box.

-(-10a+13)

Two negatives become positive so she should have had -14+10 to make -4 and 12-13 to make -1. A negative and positive together, the negative always wins so that why you subtract.

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Step-by-step explanation:

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John wrote the numbers 678,901 and 67,890. How many times greater is the value of 7 in 678,901?

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Answer:

The value of 7 in 678,901 is 10 times greater than the value of 7 in 67,890

Step-by-step explanation:

step 1

we have

678,901

Write in expanded form

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step 2

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step 3

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Answer:

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Step-by-step explanation:

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