4 years ago

What is the solution

Mathematics

1 answer:

OLEGan [10]4 years ago

6 0

A means of solving a problem or dealing with a difficult situation

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HELPPP PLEASEEEEEE!!!!!!!!!1

salantis [7]

Hi!

We can see the river is a straight line.

This means that the angles that fall upon it are supplementary angles, and will add up to 180 degrees.

Therefore:

$x+2x+21=180$

Combine like terms:

$3x+21=180$

Subtract 21 from both sides:

$3x=159$

Divide both sides by 3:

$x=53$

Therefore, the value of x is 53 degrees.

7 0

2 years ago

There are eight lockers in a school hallway and five of them have star stickers on the inside. If the first locker opened does n

Gemiola [76]

5/7. You are eliminating one of the 8 original lockers yet you still have 5 possible stars left. Hence a probability of 5 stars over 7 possible lockers left. 5/7 = .7143 or 71.43 %

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3 years ago

Solve for the problem 13^3x-1=91

gogolik [260]

Answer:

${13}^{3} x - 1 = 91 \\ {13}^{3}x = 91 - 1 \\ {13}^{3}x = 90 \\ 2,197x = 90 \\ \frac{2197x}{2197} = \frac{90}{2197} \\ x = 0.04$

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4 years ago

Amanda had some buttons. 20% of the buttons were red, There were 54more green buttons than red buttons. The remaining 90 buttons

Katena32 [7]

Answer: 40%

Step-by-step explanation: twice as more of 20% is 40%

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3 years ago

What is y-intercech of the function y = 2x^2 - 5x + 8

Oksanka [162]

Answer:

Step-by-step explanation:

The y intercept of a function is found by setting x equal to zero

y = 2x^2 - 5x + 8

y = 2*0 -5*0 +8

y = 8

The y intercept is 8

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4 years ago