Understanding Percent Answers
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1
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Alex knows 18% of the students surveyed at his school are dropped off by car, while 22% walk or ride bikes, and the rest ride the bus. Which table could represent this information?
A
A 4-column table with 1 row titled Student Transportation Survey. Row 1 is labeled Transportation and Row 2 is labeled Students. Column 1 is labeled Walk with entry 10 percent. Column 2 is labeled Ride Bike with entry 12 percent. Column 3 is labeled Car with entry 18 percent. Column 4 is labeled bus with entry 38 percent.
B
A 4-column table with 1 row titled Student Transportation Survey. Row 1 is labeled Transportation and Row 2 is labeled Students. Column 1 is labeled Walk with entry 14 percent. Column 2 is labeled Ride Bike with entry 8 percent. Column 3 is labeled Car with entry 18 percent. Column 4 is labeled bus with entry 60 percent.
C
A 4-column table with 1 row titled Student Transportation Survey. Row 1 is labeled Transportation and Row 2 is labeled Students. Column 1 is labeled Walk with entry 22 percent. Column 2 is labeled Ride Bike with entry 22 percent. Column 3 is labeled Car with entry 18 percent. Column 4 is labeled bus with entry 18 percent.
D
A 4-column table with 1 row titled Student Transportation Survey. Row 1 is labeled Transportation and Row 2 is labeled Students. Column 1 is labeled Walk with entry 16 percent. Column 2 is labeled Ride Bike with entry 6 percent. Column 3 is labeled Car with entry 18 percent. Column 4 is labeled bus with entry 22 percent.
2
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Raj gave his mother a bouquet of 12 pink and white roses. There were 4 pink roses in the bouquet. Which ratio represents the number of white roses to the total number of roses in the bouquet?
A
One-third
B
One-half
C
Two-thirds
D
Three-fourths
3
Rebeckah answered 42 of the 60 questions correctly on a test. Which method should she use to find the percent of questions she answered correctly?
A
First, subtract 42 from 60 to find the ratio of questions answered correctly to total questions, which is . Then, add 40 to the numerator and denominator to find the percent: .
B
First, find the ratio of questions answered correctly to total questions, which is . Then, add 40 to the numerator and denominator to find the percent: .
C
First, subtract 42 from 60 to find the ratio of questions answered correctly to total questions, which is . Then, simplify the ratio to . Finally, multiply the numerator and denominator by 10 to find the percent: .
D
First, find the ratio of questions answered correctly to total questions, which is . Then, simplify the ratio to . Finally, multiply the numerator and denominator by 10 to get .
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