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Leno4ka [110]
3 years ago
12

Triangle abc is a right triangle. One of the acute angles is (3x+20)and the other is (3x+10) find the value of x

Mathematics
1 answer:
sasho [114]3 years ago
5 0

Answer:

x=10

Step-by-step explanation:

90+3x+10+3x+20=180

-90      -10      -20   -120

combine like terms

6x=60

x=10

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What is the fractional notation of 2.4%
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A box is supposed to have 150 folders in it. Clare counts only 147 folders in
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Step-by-step explanation:

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3 years ago
The length of a rectangle is six times it’s width. If the area of the rectangle is 150ft^2, find its perimeter.
sineoko [7]

Answer:

Perimeter = 70ft

Step-by-step explanation:

Area of a rectangle is:

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a = length

b = width

then:

150 = 6b*b

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then:

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