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3 years ago

3(7)+9=30 what does this equal

Mathematics

2 answers:

gayaneshka [121]3 years ago

6 0

Answer:

First finish the brackets

21+9=30

30=30

So, it’s true

Step-by-step explanation:

icang [17]3 years ago

6 0

Answer:

you got the right answer it equals 30

Step-by-step explanation:

i think that is what your asking and the answer is already correct

but you distribute the 3 into the 7 so you would do 3x7+9 and that would give you 30

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The length of a rectangular prism is 8

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$W=width$
$L=length$
$H=height$

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replacing the values

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$250=2*(8*W+8+W)$

$250=2*(9*W+8)$

dived each member by 2

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$9W=125-8$

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$\boxed{\boxed{W=13~unit~of~measure}}$

The volume of a rectangular prism is

$V=L*H*W$

$V=8*1*13$

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3 years ago

Show that (3*8*x)^7 = 6^7*4^7*x^7

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Step-by-step explanation:

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Then you raise it to the 7th power

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Step-by-step explanation:

Time for equipment elevator = 11 seconds + 27 seconds = 38

Time for elevator for miners = 27 seconds

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