Answers RVACR Reading Common Core Algebra IQuantitative Reasoning

Estimating with Percents Answers

4 verified answers

Free Preview

A building is being constructed. When completed, it will be 596 meters tall. It currently stands at 77% of this height.

400 meters

350 meters

450 meters

480 meters

Free Preview

Which is the best estimate of 162% of 79?

112

119

128

136

Which value is the best estimate of 26% of 259?

A family is going on a 603-mile car trip. So far they have driven 24% of the distance. Which is the best estimate for the number of miles they have driven so far?

120 miles

150 miles

180 miles

210 miles

Christina estimated 188% of 91 by performing these steps. What did she do wrong?

She rounded 188% up to 190%.

She rounded 91 down to 90.

She incorrectly broke 190% into .

She incorrectly multiplied 90 and 0.9.

The price of a pair of jeans was $31, but due to an increase the price went up to 129% of what it was originally. Which is the best estimate of the current price of the pair of jeans?

$36

$39

$48

$52

Kurt and Maria’s high school is having a newspaper drive.The goal is to collect 3,585 pounds of newspapers. So far, 21% of the goal has been reached.Kurt estimated the number of pounds of newspapers collected by finding 10% of 3,600 and then multiplying the result by 2.Maria estimated the number of pounds of newspapers collected by finding of 3,600. Who is right, and why?

Neither Kurt nor Maria is right, because 3,500 should be used instead of 3,600.

Kurt is right, because finding of 3,600 is not a good way to approximate 21% of 3,585.

Maria is right, because finding 10% of 3,600 and multiplying the result by 2 is not a good way to approximate 21% of 3,585.

Both Kurt and Maria are right, because 3,585 should be rounded up to 3,600, and 21% of this amount can be approximated by either finding 10% of 3,600 and multiplying the result by 2 or by finding of 3,600.

Holly has watched 39% of a movie that is 122 minutes long. Which is the best estimate for the number of minutes of the movie that Holly has watched?

36 minutes

39 minutes

48 minutes

52 minutes

LaVonne estimated 38% of 63 by rounding 38% up to 40%, rounding 63 up to 70, and then multiplying 70 by 0.4 to get 28. Is her estimate reasonable?

No, because she should have rounded 38% down to 30%.

No, because she should have rounded 63 down to 60.

Yes, because she correctly rounded 38% up to 40%.

Yes, because she correctly rounded 63 up to 70.

The Lewis family dined at a restaurant. Their bill came to $52, and they plan on leaving a 19% gratuity. This means that the total amount they will pay is 119% of the bill. Which calculation results in the best estimate of the total amount they will pay in dollars? Assume there is no tax.

(50) (110 percent) = (50) (100 percent + 10 percent) = (50) (100 percent) + (50) (10 percent) = (50) (1.0) + (50) (0.1) = 50 + 5 = 55

(50) (120 percent) = (50) (100 percent + 20 percent) = (50) (100 percent) + (50) (20 percent) = (50) (1.0) + (50) (0.2) = 50 + 10 = 60

(60) (110 percent) = (60) (100 percent + 10 percent) = (60) (100 percent) + (60) (10 percent) = (60) (1.0) + (60) (0.1) = 60 + 6 = 66

(60) (120 percent) = (60) (100 percent + 20 percent) = (60) (100 percent) + (60) (20 percent) = (60) (1.0) + (60) (0.2) = 60 + 12 = 72

Did you find these answers helpful?

Estimating with Percents Answers

More from this Course

TRY EDGENUITY HACKS