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Harlamova29_29 [7]
3 years ago
7

If k is parallel to l find the value of a and the value of b.

Mathematics
1 answer:
kipiarov [429]3 years ago
3 0

Answer:

a = 30

b = 40

C

Step-by-step explanation:

This requires that you use a proportion.

a / (a + 15) = 40 / 60

The small triangle's sides are in proportion to the large triangles sides.

Reduce the right. Divide top and bottom by 20

a/(a + 15) = 40/20 // 60/20

a/(a + 15) = 2/3                    

Cross multiply

3a = 2(a + 15)            Remove the brackets on the right.

3a = 2a + 30

Subtract 2a from both sides

3a-2a = 30

a = 30

Find B

b is done exactly the same way.

b/(b+20) = 2/3

3b = 2b + 40

3b - 2b = 40

b = 40

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Answer:

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Step-by-step explanation:

x² + 11x + (5.5)² = 3+ (5.5)²

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2 years ago
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Answer:

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2. The y-intercept 2 means the number of chapters you started reading and the slope 5/4 means the number of chapters you read per day.

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3 years ago
X^2+2y=19<br> X^2+y^2=34
Katen [24]

Answer:

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5 0
3 years ago
What type of number is v5?
scoundrel [369]
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3 years ago
How to simplify 9+5(4x+4)
RoseWind [281]
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3 years ago
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