22
2 quarters, 3 dimes, 1 nickel, 3 pennies. I worked it out by knowing that 3 pennies would be needed for sure (to get from 85 to 88), but not 8 pennies, since there's no 80 cent coin. Then just started working it out with quarters, then seeing how many dimes, and then nickels would work out to the six remaining coins.
3 quarters & 2 nickels
If you received a 15 per cent discount, you paid 100-15 = 85 per cent of the original price. And this was the 545.28. So the question can be re-stated as: if 85% is 545.28 what is 100% ? and the answer is 545.28/85*100 = 641.51
To make 89 cents with 6 coins, you have to first realize that the "9" part of the cents is comprised of 5 cents and 4 pennies. Therefore, you have to have 4 pennies and 85 cents using 2 coins; impossible, since you would need 3 coins(if you had half-dollars) to make that amount: a half-dollar, quarter, and a dime. Basically, it's impossible with only coins worth 0.01, 0.05, 0.10, 0.25, and 0.50 of the currency(US$, I assume?)
a dime, a quarter and a fifty-cent piece.
22
85
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2 quarters, 3 dimes, 1 nickel, 3 pennies. I worked it out by knowing that 3 pennies would be needed for sure (to get from 85 to 88), but not 8 pennies, since there's no 80 cent coin. Then just started working it out with quarters, then seeing how many dimes, and then nickels would work out to the six remaining coins.
1x25,6x10=85
Using pennies, nickels, and dimes: 85 pennies 1 nickel 1 dime Total = 87 coins.
3 quarters & 2 nickels
20-3 = 17 and 17/20 = 85/100 = .85 or 85%. Percent is a ratio per cent or 100. Multiplying both the 20 and the 17 by 5 will make the denominator 100 and the percent sought after.
Expressed as a vulgar fraction in its lowest terms, 85 per cent is equal to 85/100 = 17/20.
If you received a 15 per cent discount, you paid 100-15 = 85 per cent of the original price. And this was the 545.28. So the question can be re-stated as: if 85% is 545.28 what is 100% ? and the answer is 545.28/85*100 = 641.51
153 / 85 = 1.8 x 100 = 180 Therefore, the number that 153 is 85 per cent of, is 180.