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chubhunter [2.5K]
3 years ago
8

If the measure of an angle is 13 find the measure of its supplement

Mathematics
1 answer:
MatroZZZ [7]3 years ago
8 0
A supplementary angle is when the sum of two angles is 180 degrees.
So 180- 13= 167 degrees. Therefore the answer is 167 degrees
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For the past four weeks, Micah has been recording the daily high temperature. During that time, the high temperature has been gr
Artyom0805 [142]
The same:
20/28 = 5/7
4 0
3 years ago
Ray has found that his new car gets 31 miles per gallon on the highwayand 26 miles per gallon in the city. He recently drove 285
Mkey [24]

Answer:

Highway = 155\ miles

City = 130\ miles

Step-by-step explanation:

Given

Highway = 31mi/gallon

City = 26mi/gallon

Total\ Miles = 285

Total\ Gallons = 10

Required

Determine the number of miles driven on the highway and on the city

Represent the gallons used on highway with h and on city with c.

So, we have:

c + h = 10 ---- gallons used

and

31h + 26c = 285 --- distance travelled

In the first equation, make c the subject

c = 10 - h

Substitute 10 - h for c in the second equation

31h + 26c = 285

31h + 26(10 - h) = 285

Open bracket

31h + 260 - 26h = 285

Collect like terms

31h - 26h = 285 - 260

5h = 25

Make h the subject

h = \frac{25}{5}

h = 5

Substitute 5 for h in c = 10 - h

c = 10 - 5

c = 5

If on the highway, he travels 31 miles per gallon, then his distance on the highway is:

Highway = 31 * 5

Highway = 155\ miles

If in the highway, he travels 26 miles per gallon, then his distance on the highway is:

City = 26 * 5

City = 130\ miles

8 0
3 years ago
Solve the system using substitution m=4n+11 -6n+8m=36
olchik [2.2K]
M=4n+11
-6n+8m=36

-6n + 8(4n+11) = 36
-6n + 32n + 88 = 36
26n = 36 - 88
26n = -52
n = -2

m = 4n+11 = 4(-2) + 11 = 3

Answer: (3, -2)
4 0
3 years ago
Read 2 more answers
Evaluate the expression.
xxMikexx [17]

Answer:

17

Step-by-step explanation:

2 sqrt(81) -1

We know the sqrt(81) = 9

2*9 -1

18-1

17

7 0
3 years ago
Company A charges $125 annual fee plus $5 per hour car share fee. Company B charges $80 plus $10 per hour. What is the minimum n
Sergio [31]

Answer:

A. 9

Step-by-step explanation:

125 + 5x = 80 + 10x

5x = 45

x = 9

5 0
2 years ago
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