A person weighed themselves at 160 lb. Three months later they weighed themselves at 130 lb. Which of the following is the percent of weight the person lost over 3 months? (Round to the nearest percent.)
20%
13%
19%
29%
Correct Answer : C
the percentage change in weight is found by calculating change in weight over original multiplied by 100%.
First, find the change in weight over the 3 months
Change in weight lost= 1860-130=30 lb
Thus
The percent change in weight is 19% to the nearest whole number.
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Correct Answer is D
Explanation
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Correct Answer is B
Explanation
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Explanation
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Explanation
the mean of a data set is the total scores divided by the number of tests.
Total test scores =80+68+74+87+96=405
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Correct Answer is D
Explanation
We are asked to make w the subject of the formula.
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Explanation
The perimeter of a shape is the sum of the lengths of all its sides.
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Explanation
A standard six-sided die has the numbers 1, 2, 3, 4, 5, and 6. The even numbers are 2, 4, and 6.
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Explanation
To estimate the total amount, round each price to the nearest dollar:
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Explanation
we are asked to find the number of gallons a full tank can hold. A full tank is equivalent to 1.
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Explanation
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