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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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skad [1K]

Hi!

-3a - 3 = -2 + 3p

-3a=3p+1

\frac{-3a}{3}=\frac{3p+1}{-3}

Answer------>a=-p+\frac{-1}{3}

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What is x in the equation -3(7-2x)+3=8x-10
damaskus [11]

Answer:

x=-4

Step-by-step explanation:

−3(7−2x)+3=8x−10

Step 1: Simplify both sides of the equation.

−3(7−2x)+3=8x−10

(−3)(7)+(−3)(−2x)+3=8x+−10(Distribute)

−21+6x+3=8x+−10

(6x)+(−21+3)=8x−10(Combine Like Terms)

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Step 2: Subtract 8x from both sides.

6x−18−8x=8x−10−8x

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Step 3: Add 18 to both sides.

−2x−18+18=−10+18

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Step 4: Divide both sides by -2.

−2x

−2

=

8

−2

x=−4

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Sarah has 12 quarters

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I am Lyosha [343]
You have to simplify the 1/5 first.
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