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artcher [175]
3 years ago
13

Sarah correctly answers 21 questions on her reading test. There are 30 questions on the test.

Mathematics
1 answer:
Mashcka [7]3 years ago
6 0

Answer:

I think it is 70% :)

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Math experts please help​
Licemer1 [7]

Answer:

The answer is 64

Step-by-step explanation

Lines JK and HI are congruent therefore making the 60 degree angle on line JK can also be used to find the rest of triangle <HAI, and triangles always add up to 180 degrees

8 0
3 years ago
19. the first side of a triangle measures 4in less than the second side, the third side is 3 in more than the first side, and th
Harman [31]

Answer:

the third side is 5 2/3 in.

s - 1

Step-by-step explanation:

a = side 1

b = side 2

c = side 3

a + b + c = 15

a = b - 4 => b = a + 4

c = a + 3

a + a + 4 + a + 3 = 15

3a + 7 = 15

3a = 8

a = 8/3 = 2 2/3 in

b = a + 4 = 6 2/3 in

c = a + 3 = 5 2/3 in

5 0
3 years ago
Please help me solve this system !!!!
Mademuasel [1]

Answer:

idk

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Marty earns $24 per hour. Marissa earns a base weekly salary of $100 plus $8 per hour. How long will Marty and Marissa have to w
vaieri [72.5K]
I think the answer is c. please tell me if i am right
4 0
4 years ago
Read 2 more answers
By what percent will a fraction increase if its numerator is increased by 60% and its denominator is decreased by 20%?
Strike441 [17]
Lets just use \frac{10}{20} for an example. If the number is increased by 60% and the denominator is decreased by 20% we get the new fraction being: \frac{16}{16}. Since then new one is equal to 1, and the original is equal to \frac{1}{2}, we see that this manipulation of the fraction causes an increase of 100%. 
7 0
3 years ago
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