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jolli1 [7]
3 years ago
12

Evaluate. 8 • [5 + (18 – 7)] ÷ 4 Please help! Im stuck.

Mathematics
2 answers:
Georgia [21]3 years ago
8 0
8·(5+(18-7))÷4
Remember PEMDAS, Parenthesis, Exponents, Multiply, Divide, Add, Subtract 
First Step: 18-7=11
New equation would be: 8·(5+11)÷4
Second Step: 11+5=16
New equation would be: 8·16÷4
Third Step: 8·16=128
New equation would be: 128÷4
Fourth Step: 128÷4=32
So the answer would be 32
Hope this helps :)

podryga [215]3 years ago
6 0
The answer is 32. This is because, first according to The Order of Operations, we do parentheses first (or other grouping symbols). So now the equation looks like this: 8(5 + 11) divided by 4. Next, we add 5 +11, which is 16, so 8(16) = 128, and 128 divided by 4 is 32. I hope this helps! If you need helps on the Order of Operation, please ask! :D
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Answer:

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Orlov [11]

Answer:

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Step-by-step explanation:

So, to start answering this, lets recall the formula for a rectangles volume:

This formula is :

V=h*w*l

Lets plug in what we know, and solve for the missing variable.

We know that height(h) is 7.

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So:

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To find length(l), we must iscolate it.

To do this, we must get rid of the 7 and 9.

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