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Xio just took a math test with 25 questions, each worth an equal number of points. The test is worth 100 points total. If a score of 70 points earns a grade of C, how many questions would Xio need to get
asked
Dec 11, 2023
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Xio just took a math test with 25 questions, each worth an equal
number of points.
The test is worth 100 points total. If a score of 70
points earns a grade of C, how many questions would Xio need to get
right to get a grade a of C on the test?
Mathematics
high-school
Arseniew
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Arseniew
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18 correct to get a grade of a c
Hzrari
answered
Dec 12, 2023
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Hzrari
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X = number of points per question
25 * x = 100
x = 100/25
x = 4
let y = number of questions right
70 = y*4
y= 70/4
y = 17 r 2
Must round up to fall in the grade boundary:
= 18 question right
Avram Virgil
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Dec 16, 2023
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Avram Virgil
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