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3 years ago

I NEED HELP ASAP!!!!!!

Mathematics

1 answer:

bija089 [108]3 years ago

8 0

(2x + 29) + 91 = 180.

This is because they add to form a straight line which is 180 degrees, in other words the angles are supplementary.

2x + 29 = 89 (Subtract 91 from each side)

2x = 60 (Subtract 29 from each side)

x = 30 (Divide 2 from each side)

x = 30

The answer is B

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Which shows all the prime factors for 24?

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3 years ago

The cost of 3 notebooks and 2 pencils is $5.10. At the same prices, the cost of 2 notebooks and 3 pencils is $4.65. What is the

Pepsi [2]

Answer:

$1.95

Step-by-step explanation:

notebook = n

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subtract bottom equation from the top equation

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sub p into either equation, I chose the original top equation

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3 years ago

(x+2y = 10 16y=-3x+30

Harlamova29_29 [7]

Answer:

x = 10, y = 0

Step-by-step explanation:

x + 2y = 10

x = 10 - 2y (Bring the 2y to the right)

16y = -3x + 30

16y = -3(10 - 2y) + 30 (Substitute x to 10 - 2y)

16y = -30 + 6y + 30 (Expand brackets)

10y = 0 (Bring y to the left)

y = 0

x = 10 - 2(0) (Substitute y = 0)

x = 10

x = 10, y = 0

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3 years ago