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andrey2020 [161]
4 years ago
9

The second angle of a triangle is 68 more than the first angle. The third angle is two times the first. Find the three angles.

Mathematics
1 answer:
creativ13 [48]4 years ago
6 0

let the first angle be a

then

second angle= 68+a

third angle=2a

we know

a+b+c=180 [sum of interior angle of triangle is 180]

a+68+a+2a=180

4a=180-68

a=28

Hence

first angle=28

second angle = 96

third angle =56

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7 0
3 years ago
Read 2 more answers
(04.01, 04.02 HC)
lord [1]
I’ve broken it down into the parts that you’ve highlighted:

Part A:
x = 25 + y
x + y = 95

Part B:
I’m using the substitution method to find the amount of time that Eric plays volleyball, so:
x + y = 95
x = 95 - y
95 - y = 25 + y
70 = 2y
y = 35, 35 minutes spent playing volleyball

Part C: i don’t completely understand the question, perhaps there was a typo?
5 0
2 years ago
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Hope this helps

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