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3241004551 [841]
3 years ago
10

Jerome earned an 80% on his math test. If there were thirty-five questions on the test, how many questions did he answer correct

ly? Explain your work
Mathematics
1 answer:
Pepsi [2]3 years ago
7 0

Answer:

28 questions

Step-by-step explanation:

80% is 80 out of 100, so we can represent it as 80/100.

80 / 100 = y / 35

We need to find the value of y.

To do this we can cross multiply, with a method I like to call the butterfly method.

80         y

100       35

80x35=2800

Therefore, 100 times y equals 2800.

So we divide 2800 by 100.

2800/100=28.

Therefore, y equals 28.

y=28.

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For problem 8, find the area of the shaded region. The polygon is a regular polygon. please show work.​
MissTica

Answer:

34.7791 [unit²].

Step-by-step explanation:

1) area of the circle is:

πr²;

2) area of the regular polygon is:

6*r²√3*0.25=1.5√3r²;

3) the required area:

πr²-1.5√3r²=r²(π-1.5*√3)=64*(3.1415-1.5*1.7321)=34.7791

4 0
3 years ago
Find the value of x in each case.​
MissTica

Answer:

The angle X in every part of the triangle is 22.5⁰

7 0
3 years ago
Plz help ASAP thanks so much
adell [148]

Answer: x = 27°

Step-by-step explanation: Both are alternate interior angles

6 0
3 years ago
Solve for x: 4 − (x + 2) < −3(x + 4) 90 points!!!!!
slava [35]

Hello :)

First, solve each side before we solve the inequality

4 − (x + 2)                                                                  

−3x − 12                                                                              

− (x+2)

4 − x − 2

*group the like terms*

− x + 4 − 2

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−3(x + 4)

−3(x + 4)

3x − 12

− x + 2 < 3x − 12

subtract 2 from both sides

− x + 2 < −3x − 12

      -2             -2

−x < − 3x − 14

add 3x to both sides

−x < − 3x − 14

+3x   +3x

2x < − 14

divide both sides by 2

\frac{2x}{2}<\frac{-14}{2}

<h2>x < − 7</h2>

8 0
3 years ago
100 Points and Brainliest to whoever helps me!
AysviL [449]
I think the answer: 0,6
step-by-step explanation:
this would make it the y intercept.
5 0
3 years ago
Read 2 more answers
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