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gtnhenbr [62]
3 years ago
14

Solve the system of equations: 2x-5y=-22 X+7y=27

Mathematics
2 answers:
Luba_88 [7]3 years ago
6 0
The answer is y=-3/2x+2.5
Eva8 [605]3 years ago
4 0
(x, y) = (-1, 4) please mark brainliest
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The lengths of two sides of the isosceles triangle are the ratio of 6:5. The perimeter of the triangle is 32cm. What is the area
Degger [83]
Sorry I'm late! xx
Okay, so two of the sides in an isosceles triangle are of the same length. The lengths are either in the ratio 5:5:6 or 5:6:6
The perimeter is 32 cm

If we take the first ratio, 5:5:6, then we have 16 "parts". Let the length of each "part" be referred to as "x"
So, 16x = 32, and so x = 2

So, the ratio of the sides are 10 cm, 10 cm, 12 cm.

To find the height, "h", we need to use Pythagoras' Theorem, with 10 being the hypotenuse and 6 being the horizontal side (think of a line cutting straight down the middle of the isosceles triangle)
h^2 + 36 = 100
h = 8 cm

Area of a triangle is 0.5 x base x height. So, 0.5 x 12 x 8 = 48 cm^2

Hope I helped!! xx

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3 years ago
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It is for a grade please help asap
guajiro [1.7K]

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I believe the answer is 64. I'm not exactly sure but let's hope it's correct.

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