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krek1111 [17]
3 years ago
6

An angle's supplement is nine times of its complementary angle. Find the measure of the angle, the complement of the angle,and t

he supplement of the angle. Answer and Explain please.Brainliest will be given besides points .
Mathematics
1 answer:
Nezavi [6.7K]3 years ago
7 0
S = 9C
first sentence written as an expression
Where S represents the angles supplement
and C represents the angles complement
A + S = 180
definition of supplementary allows me to make this statement Where A is the original angle
A + C = 90
definition of complimentary allows this statement
now add the prior 2 statements together
A + S + A + C = 180 + 90
now simplify
2A + S + C = 270
now replace S with 9C using first statement
2A + 9C + C = 270
now simplify
2A + 10C = 270
now divide both sides by 2
A + 5C = 135
now using the second statement isolate A by adding C to both sides
A = 90 - C
now combine the two prior statements
90 - C + 5C = 135
now simplify
90 + 4C = 135
now subtract 90 from both sides
4C = 45
now divide both sides by 4
C = 11.25
so the complimentary angle is 11.25
now take the third equation and substitute in C
A + 11.25 = 90
now subtract 11.25 from both sides
A = 78.75
so the original angle is 78.75
now use the second equation and substitute in A
78.75 + S = 180
now subtract 78.75 from both sides
S = 101.25
so the suplimentary angle is 101.25
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This shows that Billy will have $12, 168.25 after 12 years

<h3>Compound interest</h3>

The formula for calculating the compound interest is expressed as:

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From the information given, the amount is expressed as;

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Learn more on compound interest here: brainly.com/question/24924853

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