So i have some math questions i'd like for some one to check : )
1. rename 4/7 as a percent. round to the nearest tenth of a percent if necessary.
a. 47% b. 1.8% c. 57.1% d. 28% 2. rename .709 as a percent. a. 709% b. 70.9% c. 79% d. 7.09% 3. alice plays basketball. in one she shoot 21 free throws and makes 81.25% of them. estimate how many free throws she makes?
a. about 16 b. about 2 c. about 20 d. about 14 4.estimate 48% of 23.95 a. about $12.00 b. about $11.00 c. about $15.00 d. about $10.00 5. the bill at a restaurant is $58.50 and mrs. johnson wants to leave a 15% tip. approximately how much money should she leave?
a. about $15.00 b. about $9.00 c. about $6.00 d. about $11.00 6. what percent of 50 is 12.5? a. 4% b. 25% c. 40% d. 15% 7. 50 is 6.25% of what number? a. 8 b. 80 c. 750 d. 800 8. which proportion can be used to solve the following percent problem? what is 50% of 70%?
a. x/70 = 50/100 b. x/50 = 70/100 c. 50/70 = x/100 d. 70/x = 50/100 my answers: 4/7 as a percent. round to the nearest tenth of a percent
= 0.57142 = 57.142% = 57.1% c .709 as a percent 70.9% b 81.25% of 21 = about 16 a 48% of 23.95 = about 12.00 a 15% of $58.50 = about 5.8 + 2.9 = 8.7 = about 9 b 50 is 12.5? 12.5/50 = 25/100 = 25% b 50 is 6.25% of what number 50 = 0.625 times x so x = 50/0.625 = 80 b 50% of 70% = 35 so the proportion would x/70 = 50/100 a