Mathematics: Raul simplified the expression, as shown below. –[3h + 7h(2 – h)] = –[10h(2 – h)] = –[20h – h] = –19h describe the error(s) in raul’s work.

Raul simplified the expression, as shown below. - id33032840, anthonycortez4993

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AJSkullcrusher

09.06.2020

He should have worked out 7h(2 - h) first before adding the 3h. (first step)

2nd step he multiplied the 2 by -10h but he also should have multiplied the -h by the -10h ( Distributive law)

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Ответ:

natie18

09.06.2020

Mathematics

Raul should have first removed the innermost grouping symbols, the parentheses, by distributing 7h.

He should not have added like terms before multiplying.

Raul only multiplied the 10h times the 2 and forgot to multiply it through the quantity to the –h.

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Ответ:

babowmanjacob666

24.02.2023

Mathematics

$7.75+$7.75=$15.50 (He took the taxi 2x)
$0.56(14)+$0.56(7)=$11.76 (14 miles on the way to work, 7 miles on the way home since he only rode half way and walked the other half)
$15.50+$11.76=$27.26
Ryan pays $27.76 for the taxi ride per day.

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Raul simplified the expression, as shown below. –[3h + 7h(2 – h)] = –[10h(2 – h)] = –[20h – h] = –19h describe the error(s) in raul’s work.

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