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Bell Work. Percent of a Number Percent Estimation. $3.25. 30% of 40 = 12 30% of 45 = 13.5. Percent Proportions. Percent Proportions. Percent Proportions. Percent Proportions (Finding a Percent). Percent Proportions You Try (Finding a Percent). $12.75 = x
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Bell Work • Percent of a Number • Percent Estimation $3.25 30% of 40 = 12 30% of 45 = 13.5
Percent Proportions You Try(Finding a Percent) $12.75 = x $50 100 1,275 = 50x x = 25.5% 20 = n 100 2,000 = 25n n = 80%
Bell Work • Percent of a Number • Percent Estimation $3.25 30% of 40 = 12 30% of 45 = 13.5
Percent Proportions You Try(Finding a Part) p = 12 85 100 1020 = 100p p = 10.2 n = 5 60 100 300 = 100n n = 3
Percent Proportions You Try(Finding a Whole) 80 = 75 x 100 8000 = 75x x = 106.7 26 = 40 x 100 2600 = 40x x = 65
Real World Example 200 = x_ 550 100 20,000 = 550x x = 36.36% x = 36%
Percent of a Number For the first six questions, find the number. Round the answer to the nearest tenth if necessary.
Percent of a Number 8% of 50 4
Percent of a Number 95% of 40 38
Percent of a Number 42% of 263 110.5
Percent of a Number 110% of 70 77
Percent of a Number 115% of 20 23
Percent of a Number 130% of 78 101.4
Percent Estimation For the next four questions, use estimation, rather than finding the exact number. Remember, make any numbers that aren’t easy to work with a little easier.
Percent Estimation 47% of 70 .45 x 70 = 31.5
Percent Estimation 39% of 120 .40 x 120 = 48
Percent Estimation 21% of 90 .20 x 90 = 18
Percent Estimation 76% of 180 .75 x 180 = 135
Percent Proportion 36% 10% 0.7 45 75 68.5 13 cups