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Rick sold a total of 75 books during the first 22 days of May. If he continues to sell books at the same rate, how many books will he sell during the month of May? Set up a proportion of days to books where n is the number of books sold in May: 22/31 = 75/n Using our proportion calculator and...

what is 828 rounded to the nearest hundred 828 lies between 800 and 900. The halfway point is 850, so 828 rounds down to 800

What is 1/3 as a decimal rounded to 3 decimal places? 1/3 = 0.3333333 Rounded to 3 decimal places, we get: 1/3 = 0.333

There is a sales tax of $15 on an item that costs $153 before tax. A second item costs $81.60 before tax. What is the sales tax on the second item? We assume the goods are bought in the same store, so tax rates are the same: Tax Rate = Tax Amount / Cost before tax Tax Rate = 15/153 Tax Rate =...

A bag of marbles is said to contain 50 marbles to the nearest ten. What is the greatest number of marbles that could be in the bag and what is the least number of marbles that could be in the bag The key word in this problem is nearest ten. The nearest ten below 50 starts at 45. Why? Because...

Stephanie spent $6.95 on these 12 chocolates. What was the cost of each chocolate? Give your answer to the nearest 5 cents $6.95/12 chocolates Divide top and bottom by 12 to get the cost per one chocolate: $6.95/12 = 0.58 cents per chocolate The problem asks us to round to the nearest 5...

Each of 6 students reported the number of movies they saw in the past year. Here is what they reported. 19, 9, 14, 10, 16, 17. Find the mean number of movies that the students saw. If necessary, round your answer to the nearest tenth. The mean is the average, so we add up the 6 movie scores...

Estimate a 15% tip on a dinner bell of $49.76 by first round the bill amount to the nearest $10. Round the bill to the nearest $10 $49.76 is in between ($40, $50) 1/2 of that interval is (40 + 50)/2 = 90/2 = 45 Since $49.76 is greater than or equal to 45, we round up to $50 Add a 15% tip...

Round 12.4263 to the nearest cent Work from right to left 3 is not greater than 5, so 6 stays the same 6 is 5 or more, so we round .42 up to 43. 12.43