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3 years ago

Simplify the expression 9(10 + 5) / (6 - 5) A.95 B.135 C.85 D.17

2 answers:

8 0

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first simplify the parenthesis

10 + 5 = 15
6 - 5 = 1

9(15)/1

multiply 9 and 15 together

9(15) = 135

135/1 = 135

B. 135 is your answer

hope this helps

noname [10]3 years ago

7 0

Hi there
It would be 135

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Step-by-step explanation:

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3 years ago

there are about 290 kids in a school. if there are 14 teachers and 5 subs how many kids would be in a class with teachers and su

Korolek [52]

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3 years ago

Read 2 more answers

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mezya [45]

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Step-by-step explanation:

I don't know what the whole thing above is, but just disregard that.

All it is here is cross multiplication.

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2 years ago

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The height of a parallelogram is 5 feet more than it's base. If the area of the parallelogram is 204 square feet, what is its ba

siniylev [52]

The base is x.
The height is 5 feet more than the base, so it's x+5.
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$x(x+5)=204 \\
x^2+5x=204 \\
x^2+5x-204=0 \\
x^2+17x-12x-204=0 \\
x(x+17)-12(x+17)=0 \\
(x-12)(x+17)=0 \\
x-12=0 \ \lor \ x+17=0 \\
x=12 \ \lor \ x=-17$

The length of the base of a parallelogram must be a positive number, so x=12.

$\hbox{the base:} \\ x=12 \\ \\
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The base is 12 feet long, the height is 17 feet long.

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3 years ago