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sesenic [268]
3 years ago
15

Answer the highlighted questions sorry the pictures blurry

Mathematics
1 answer:
zhuklara [117]3 years ago
4 0
Her mistake is on line 2. it should be negative 3 not positive 3.

the rectangles area is l*w and we know that 2x + 17 = 6x + 9 because they are both the length. so to find x we do an equation and isolate x like this

2x + 17 = 6x + 9

subtract 9 on both sides

2x + 8 = 6x
subtract 2x to both sides

8 = 4x

divide both sides by 4

2 = x

switch the sides to maintain proper form

x = 2

so now we know x = 2 so to find the answer we need to do length times width. for length im going to use 2x + 17 but you can use 6x + 9 if you want.

(2(2) + 17) * (4(2) - 1)

(4 + 17) * (8 - 1)

22 * 7

154 units squared





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