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Concept explainers
a.
To calculate: The percent correct on the test if W scored 72 points.
a.
![Check Mark](/static/check-mark.png)
Answer to Problem 30E
The percent correct on the test if W scored 72 points is
Explanation of Solution
Given information:
The provided table depicts the points scored by students in a math test in W’s study group.
Formula used:
Percent proportion is ratio of amount and base is same as percent to 100.
To convert percentage to fraction divide the number by 100.
Calculation:
Consider the provided table that depicts the points scored by students in a math test in W’s study group.
For W’s percent correct on test, since he scored 72 pointsso, evaluate what percent 72 is of 88.
Recall that percent proportion is ratio of amount and base is same as percent to 100.
According to the question, number of score point divided by total number of points is desired percent correct,
Thus, W scored is
b.
To calculate: The percent correct on the test if C scored 81 points.
b.
![Check Mark](/static/check-mark.png)
Answer to Problem 30E
The percent correct on the test if C scored 81 points is
Explanation of Solution
Given information:
The provided table depicts the points scored by students in a math test in W’s study group.
Formula used:
Percent proportion is ratio of amount and base is same as percent to 100.
To convert percentage to fraction divide the number by 100.
Calculation:
Consider the provided table that depicts the points scored by students in a math test in W’s study group.
For C’s percent correct on test, since he scored 81 points so, evaluate what percent 81 is of 88.
Recall that percent proportion is ratio of amount and base is same as percent to 100.
According to the question, number of score point divided by total number of points is desired percent correct,
Thus, C scored is
c.
To calculate: The percent correct on the test if R scored 75 points.
c.
![Check Mark](/static/check-mark.png)
Answer to Problem 30E
The percent correct on the test if R scored 75 points is
Explanation of Solution
Given information:
The provided table depicts the points scored by students in a math test in W’s study group.
Formula used:
Percent proportion is ratio of amount and base is same as percent to 100.
To convert percentage to fraction divide the number by 100.
Calculation:
Consider the provided table that depicts the points scored by students in a math test in W’s study group.
For R’s percent correct on test, since he scored 75 points so, evaluate what percent 75 is of 88.
Recall that percent proportion is ratio of amount and base is same as percent to 100.
According to the question, number of score point divided by total number of points is desired percent correct,
Thus, R scored is
d.
To calculate: The highest and lowest percentage in math test.
d.
![Check Mark](/static/check-mark.png)
Answer to Problem 30E
The highest and lowest percentage in math test is
Explanation of Solution
Given information:
The provided table depicts the points scored by students in a math test in W’s study group.
Formula used:
Percent proportion is ratio of amount and base is same as percent to 100.
To convert percentage to fraction divide the number by 100.
Calculation:
Consider the provided table that depicts the points scored by students in a math test in W’s study group.
Observe that M has scored the highest point and Penny has scored the lowest point.
For M’s percent correct on test, since he scored 87 points so, evaluate what percent 87 is of 88.
Recall that percent proportion is ratio of amount and base is same as percent to 100.
According to the question, number of score point divided by total number of points is desired percent correct,
Thus, M scored is
For Penny’s percent correct on test, since he scored 68 points so, evaluate what percent 68 is of 88.
Recall that percent proportion is ratio of amount and base is same as percent to 100.
According to the question, number of score point divided by total number of points is desired percent correct,
Thus, Penny scored is
Hence, the highest and lowest percentage in math test is
Chapter 0 Solutions
Algebra 1
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