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rosijanka [135]
3 years ago
15

Geometry PLS HELP due soon

Mathematics
1 answer:
egoroff_w [7]3 years ago
7 0

Answer:

(3) x = 7.5 and y = 51

(4) x = 6

Step-by-step explanation:

Question 3

Required

Solve for x and y

We have:

16x - 18 + 10x +3 = 180 --- angle on a straight line

Collect like terms

16x  + 10x = 180 + 18 - 3

26x = 195

Solve for x

x = 195/26

x = 7.5

Also:

16x - 18 = 2y ---- opposite angles

So, we have:

16 * 7.5 - 18 = 2y

120 - 18 = 2y

102 = 2y

Divide by 2

51 = y

y = 51

Question 4:

Required

Solve for x

We have:

11x - 2 + 5x - 4 = 90 ---- angle at right-angled

Collect like terms

11x + 5x = 90 +2 + 4

16x = 96

Divide by 16

x = 6

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