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jenyasd209 [6]
3 years ago
11

I need help this math problem ​

Mathematics
1 answer:
Nastasia [14]3 years ago
7 0

Answer:

x = 2

y = 5

1 = 80

2= 10

3 = 100

Step-by-step explanation:

Complementary angles add to 90.

So 5(x+14) + 2(10-y) = 90. Solve for x.

5x + 70 + 20 -2y = 90

5x - 2y = 0

Supplementary angles add to 180.

So 5(x+14) + 121-3x-3y = 180. Solve for x.

5x + 70 + 121 -3x -3y = 180

2x - 3y = -11

This creates a system of equations. Solve using elimination.

5x - 2y = 0  ------>  10x - 4y =0

2x - 3y = -11 ------> 10x -15y = -55

                           _____________

                                      11y = 55

                                         y = 5

Substitute y=5 into the equation to find x.

2x - 3(5) = -11

2x - 15 = -11

2x = 4

x=2

Find the measure of each angle by substituting x = 2 and y =5 into each angle.

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natta225 [31]
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Take the log of both sides:

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3 0
3 years ago
ACCORDING to the rate of electricity charge, the minimum charge up to 20 unit is Rs 80 and the cost per unit from 21 units to 25
azamat

Answer:

180

Step-by-step explanation:

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