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torisob [31]
4 years ago
13

How to do #9.........

Mathematics
1 answer:
Serhud [2]4 years ago
5 0
4x and 2x line along a straight line, their sum then must be 180° so

6x=180

x=30

So the angles in there are:

3(30)-5=85°

2(30)=60°

4(30)=120°
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Somebody can help me please I don’t understand:(
Alex17521 [72]

Answer:

1) x=67, y=83, z=80 2) x=5

Step-by-step explanation:

1) 28+85=113 a triangle is 180 degrees so 180-113=67 so x=67

x and y are supplementary meaning both sides equal 150 so 150-67=83

83+17=100 now going back how much did i say a triangle should equal? 180 so z is 80

2)a triangle = 180 since the triangle is a right angle it includes the angle 90 so make the equation to solve for x

180=90+8x+2+9x+3

take 90 to other side so you are subtracting 180-90

90=8x+2+9x+3

combine like terms

90=17x+5

subtrcat 5 from 90

85=17x

now divide 85 by 17 and you get x=5

8 0
3 years ago
Samantha and Mia each left Julia’s house at the same time. Mia walked north at 7 kilometers per hour. Samantha ran west at 11 ki
RoseWind [281]
The answer is 13.0 for the distance between Samantha and Mia after 1 hour.
a ^{2}  + b^{2}  =  {c}^{2}  \\  {7}^{2}  +  {11}^{2}  =  {c}^{2}
4 0
4 years ago
Read 2 more answers
There is 200 students.The ratio of girls to boys is 5 to 3. what is the percent of students are boys? 
skelet666 [1.2K]
The percentage of male students is 37.5%

- There for every five girls there are three boys.

- That is eight students per.

- I took two hundred and divided it by eight to get twenty-five.

- I got twenty five, if you take twenty-five times three you get seventy-five & if you take twenty-five times five you get one hundred twenty-five.

- Add those two products and you'll have your two hundred.

- So, take seventy-five over two hundred to get thirty-seven and a half.

- Divide that by one hundred to get the ratio.

- It comes out to 37.5%
4 0
3 years ago
Read 2 more answers
PLEASE HELP IM SO CONFUSED!
Andrew [12]
X - 10 = -18
x = -8
ur just solving for x
6 0
3 years ago
Read 2 more answers
What is 505/100 as a decimal?
Marina86 [1]
It is 5.05.

Hoped this helped.

~Bob Ross®
7 0
4 years ago
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