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saul85 [17]
3 years ago
12

The acute angles of a right triangle are in the ratio of 7:11. Find the measure of each angle.

Mathematics
2 answers:
kondor19780726 [428]3 years ago
4 0

Answer:

B

Step-by-step explanation:

Since it's a right angle triangle, one angle has to be 90.

Total angle in a triangle = 180

Other two should add up to 90.

7/18 × 90 = 35

11/18 × 90 = 55

Tbe angles are 35°, 55° and 90°

nalin [4]3 years ago
4 0

Step-by-step explanation:

Let the common multiplier of the given ratios be x.

Therefore measures of acute angles will be 7x and 11x.

\therefore \: 90 \degree + 7x + 11x = 180 \degree \\  \\  \therefore \:  18x = 180 \degree - 90 \degree \\  \\ \therefore \:  18x = 90 \degree \\  \\ \therefore \:  x =  \frac{90 \degree }{18}  \\  \\  \therefore \:  x =  5\degree  \\  \\ \therefore \: 7x = 7 \times 5\degree  = 35\degree  \\ \& \: 11x = 11 \times 5\degree  = 55\degree

Hence, measure of each angle of right triangle are 35°, 55°, 90°.

Thus, option B is the correct answer.

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3 years ago
Mike bought five items for lunch that Cost a total of 4.55 .Hit dogs cost .1.10 each and cookies cost 0.75 each. What equation c
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Answer:

c + h = 5 and

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Step-by-step explanation:

Assume that Mike bought only cookies and hot dogs.

The total can be represented as:

Cookies + Hot\ Dogs = 5 --- (1)

And the amount spent can be represented as:

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Required

Determine the system of equation

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Cookies + Hot\ Dogs = 5 implies c + h = 5

And

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0.75c + 1.10h = 4.55

Hence, the equations are:

c + h = 5 and

0.75c + 1.10h = 4.55

Solving for c and h

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c = 5 - h

Substitute 5 - h for c in 0.75c + 1.10h = 4.55

0.75(5- h) + 1.10h = 4.55

3.75- 0.75h + 1.10h = 4.55

3.75 +0.35h = 4.55

Collect Like Terms

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0.35h = 0.8

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h = 2.28571428571

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c = 5 - h

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