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3 years ago

What is 2(5x+7)+8x-7=27

Mathematics

2 answers:

shutvik [7]3 years ago

6 0

2(5x+7)+8x-7=27

We move all terms to the left:

2(5x+7)+8x-7-(27)=0

We add all the numbers together, and all the variables

8x+2(5x+7)-34=0

We multiply parentheses

8x+10x+14-34=0

We add all the numbers together, and all the variables

18x-20=0

We move all terms containing x to the left, all other terms to the right

18x=20

x=20/18

x=1+1/9

steposvetlana [31]3 years ago

4 0

ANSWER: 1 1/9

( use Photomath it’s helpful if you need help with math)

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Answer:

Step-by-step explanation:

12y-19= 6y+1

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y = 20/6

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3 years ago

The diagram shows a square with perimeter 20 cm.

olga_2 [115]

The percentage of the area inside the square that is shaded is 55%.

<h3>What is the perimeter of the square?</h3>

Given:

The perimeter of the square is 20Cm

Each side of the square is = 5Cm

Area = ( Length x Width )

(5 x 5) = 25 =Area

Area = 25

Area of triangle 1 = (1/2) x 5 x (5 - 3) = 5 cm²

Area of triangle 2 = (1/2) x 5 x (5 - 3.5) = 6.25 cm²

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Percentage of shade portion

= (13.75 cm² / 25 cm²) x 100%

= 55%

The percentage of the area inside the square that is shaded is 55%.

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2 years ago

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liraira [26]

Answer: It's B

Step-by-step explanation:

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3 years ago

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then
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when 'of' function is used it means to multiply the 2 fractions
when multiplying fractions multiply the numerators by numerators and multiply denominators by denominators
is $\frac{1}{2} * \frac{1}{8} = \frac{1}{16}$
answer is $\frac{1}{16}$

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3 years ago

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