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nignag [31]
3 years ago
8

You earned an 82% on a math test. You answered 18 questions correctly.How many questions were on the test

Mathematics
1 answer:
Nadya [2.5K]3 years ago
4 0

Answer:

22

Step-by-step explanation:

The easiest way to do this is to multiply the number you got right by 1+ the percent you got wrong. In this case it would be 1+.18. If you multiply 18 by 1.18 you get 21.24. Because you cant have part of a question you need to round up. To check you can divide 18 by 22 and you get 81.81. I hope this helps!

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The circumference of a circle is 18.84 miles. What is the circle's radius? C=18.84
Mama L [17]
We can find the radius by using the formula: C = 2(pi)(r)
We'll use 3.14 for pi.

And solve for r.

18.84 = 2(3.14)r ; Start
18.84 = 6.28r      ; Multiply 3.14 by 2
3 = r                     ; Divide both sides by the coefficient of r. Which is 6.28

So, the radius is 3 miles.

7 0
3 years ago
Read 2 more answers
Solve the equation m=2n-p
allsm [11]

Here is your answer:


Move all terms with m to the left, all other terms to the right:


m + 2n + -2n = -2n + p

Combine like terms:

2n + -2n = 0

m + 0 = -2n + p

Which would equal "m = -2n + p" after you simplify.


Hope this helps!


~Nonportrit

3 0
3 years ago
Please I need help ASAP
Goshia [24]

Answer:

It is 300 cubic inches!

Step-by-step explanation:

Im sorry I dont really know how to explain it but- am I correct? ;-;

5 0
3 years ago
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What is the zeros for the equation f(x) =
sergij07 [2.7K]

Answer:

B. and E.

Step-by-step explanation:

6 0
2 years ago
Help me please <br> Picture at the below
astra-53 [7]

a=-2, b=3, c=-4, d=5

 abc-d

abc means multiply those 3 together

 so -2 x 3 x -4 = 24

24-5 = 19

answer is 19

4 0
2 years ago
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