# Math 106 2.3, 2.4

 What percent of 300 is 45? P * 330= 45 ***divid 300 in to 45P= 300/45P= .15P= 15% 38 is what percent of 304 38/304= P ***divid 304 in to 38.125 = P125% = P 12 is 15% of what number? 12 = 0.15 *N *** divid .15 into 1212/0.15 = N80=N What number is 6% of 12? N= 0.06*12N= 0.72Therefore, 0.72 is 6% of 12 23 1/3% of 900 is what number? 23 1/3% = 70/30 * 1/100= 7/30 Answer: 7/30 *900= N 210= N 69% of \$21 is what number? .69* \$21 = N \$14.49= N rate of change = the change (divided by) original amount A doctor's basic office fee was increased from \$6 to \$7.50. Find the percent increase. Rate of change = the change of rate (divided by) original amount. In this case the change represents an increase (\$1.50); hence , rate of increase = increase (divided by) original feerate of increase = \$1.50/\$6rtae of increase = 0.25 or 25% Eyeglass frams priced at \$18.20 are to be remarked to \$14.56 because the style change. original price = \$18.20the change = \$3.64Determine the rate of decrease...20%: \$3.64/\$18.20 = 0.2 Steve saved \$576 from his annual income of \$6,000. What percent of his income did he save? 1. Determin what the the problem is asking you to find a. The savings (\$576) is what percent of his annual income (\$6,400)2. State the problem b. \$576 is what percent of \$6,4003. Estimate the answer c. observe what 10% of the annual income would be \$640 saved; hence the answer would be slightly less than 10%4. Solve and check Problem d. P= \$576/ \$6,400 P= 0.09 p= 9%check: 9% * \$6400 = \$576 AuthorLatoyaw78 ID35338 Card SetMath 106 2.3, 2.4 DescriptionSolving Percent problems, Applications Updated2010-09-17T16:22:50Z Show Answers