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andrew-mc [135]
2 years ago
6

PLEASE HELP ME ASAP 40 POINTS AND BRAINLIEST SHOW WORK

Mathematics
1 answer:
grin007 [14]2 years ago
6 0
X = 7 
Y = 16

Since we know that the bottom two sides are congruent we can make an equation to solve for that X first [2x + 5 = x + 12] .  (since we cannot make an equation with the two congruent sides at the top because there are different variables). 
Now that we've solved for X which is 7, we can plug it into the top equation [y - 4 = x + 5] which would simplify to [ y - 4 = 12] which would give us 16 for Y<span />
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2) P = Area of smaller rectangle/ Area of large rectangle

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P= 8/120 ≅ .0666≅ 7% (because .0666·100 =6.66≅7)

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= 120 -4·pi -8 = 120 - (4· 3.14) -8 = 99.4362939 ft²

Area of large rectangle = l·w = 12·10 =120 ft²

P = 99.4362939 /120 ≅ .8286 ≅83% (because .8286·100 =82.86≅83)

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