3 years ago

I need help answering number 8 please

1 answer:

swat323 years ago

5 0

The diagram of the triangle is shown below

One interior angle is 56°
One exterior angle is 103° ⇒ we can work out one interior angle 180°-103° = 77°

The other interior angle is 180° - (56°+77°) = 44°

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Can someone please help me on this one question?

Katyanochek1 [597]

A+30 = 60
a = 30

a + 2b = 60
30+2b = 60
2b = 30
b = 15

5b - 5c = 60
5(15) - 5c = 60
5c = 15
c = 3

10c + d = 60
10(3) + d = 60
30 + d = 60
d = 30

2d + 6e = 180 - 60
2(30) + 6e = 120
6e = 60
e = 10

4f + 4e = 120
4f + 4(10) = 120
4f = 80
f = 20

5 0

3 years ago

3(2x+5)=36<br>what is the value of x

Bond [772]

$3(2x+5)=36\\
6x+15=36\\
6x=21\\
x=\frac{21}{6}$