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3 years ago

What is the value of x in the figure below?? please help!

Mathematics

2 answers:

nasty-shy [4]3 years ago

6 0

Answer:

B) 24 degrees

Step-by-step explanation:

As this is a right angle with a total of 90 degrees you would first minus 42 from 90, which gives you 48. This now leaves you with just the 2x. As we know that 2x is 48 to work out x you would simply divide 48 by 2, which gives you 24.

1) Minus 42 from 90.

$90-42=48$

2) Divide 48 by 2.

$48/2=24degrees$

ipn [44]3 years ago

6 0

Answer: x = 24° ,Option B

Step-by-step explanation: The angles are: (2x )°, 42°

→ The angles (2x)° and 42° are complements of 90°.

i.e. (2x)° + 42° = 90°

2x = 90-42=48°

2x=48°

x= 48/2 = 24°

∴x=24°

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3 years ago

What is the solution

Umnica [9.8K]

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Plug this y value into the other equation.

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Subtract 20 from both sides

-9x + 15x + 20 - 20 = -1 - 20

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Combine like terms

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Divide both sides by 6

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x = -7/2

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Plug this value into an equation to solve for y.

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10.5 + y = 4

Subtract both sides by 10.5

10.5 - 10.5 + y = 4 - 10.5

y = -6.5

Check this answer by plugging the value of x into the other equation.

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Subtract both sides by 31.5

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Divide both sides by 5

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3 years ago

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Answer:

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Step-by-step explanation:

we have

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Applying the property of exponents

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uysha [10]

Answer:

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Step-by-step explanation:

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Solving for y in first equation gives: y = 13 - x

Plug into second equation: 40x + 70(13 - x) = 820

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2 years ago

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Answer:

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Step-by-step explanation:

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