Which is a good comparison of the estimated sum and the actual sum of 7 10/12+2 11/12
1 answer:
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Answer:
x = 18
Step-by-step explanation:
Given
+ 1 =
+ 7 ( subtract 1 from both sides )
=
+ 6
Multiply through by 15 to clear the fractions
9x = 4x + 90 ( subtract 4x from both sides )
5x = 90 ( divide both sides by 5 )
x = 18
Step-by-step explanation:
I am not sure about the answer of (b). Hope it helps :)
