Sarah's English test had 90 questions and she got 18 questions wrong. What percent of the questions did she get correct?
Answers
Answer 1
Answer:
So,
Sarah got 72/90 questions correct.
Simplify 72/90
72 = 2 * 2 * 2 * 3 * 3
90 = 2 * 3 * 3 * 5
Cross out "ones"
2 * 2 over
5
4/5 = 80%
Sarah got 80% of the questions correct
Sarah got 72/90 questions correct.
Simplify 72/90
72 = 2 * 2 * 2 * 3 * 3
90 = 2 * 3 * 3 * 5
Cross out "ones"
2 * 2 over
5
4/5 = 80%
Sarah got 80% of the questions correct
Answer 2
Answer:
90-18=72 questions (answered correct)
72/90=0.8
To get the percent, you have to move the decimal point over two places, so 80%
72/90=0.8
To get the percent, you have to move the decimal point over two places, so 80%
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B:48
C:69
D:78
Answers
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. To solve for y, subtract 
and 
from the left hand side and rights hand side of the equation. now you know the value is 
. So the value of y is 69 degrees.
Now you know two angles of a triangle and the sum of the angles in a triangle is 180 degrees. So the equation is
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from both sides. 
. So you know that 
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Now you know two angles of a triangle and the sum of the angles in a triangle is 180 degrees. So the equation is
Answer:
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Answers
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Step-by-step explanation:
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> R = I/PT
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