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percentage-and-ratio-word-problems

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  • A penny is tossed and a die is rolled

    A penny is tossed and a die is rolled. What is the probability of tossing a tail and rolling a 4?

  • convert 9/16 to a percent 9/16=r/100 r=900/16=56.25=56.3 Did I do this one correct

    convert 9/16 to a percent 9/16=r/100 r=900/16=56.25=56.3 Did I do this one correct? Thanks

  • kevin started running the first week in januray

    kevin started running the first week in januray. He ran 4 miles 3 days a week. Greg strated running the secong week of january. He ran 3 miles 5 times a week. By the end of what week had they run the same distance?

  • if i spend $30, what fraction of $90 did i spend

    if i spend $30, what fraction of $90 did i spend

  • please help me solve this word problem: what is 25% of a 200 is

    please help me solve this word problem: what is 25% of a 200 is?

  • A professor started a project with a group of students, 60% of whom were boys

    A professor started a project with a group of students, 60% of whom were boys.Due to some unavoidable reasons, six girls couldn't turn up, so the professor had to make some changes in the group. He admitted six girls. In doing so, the percentage of boys in the project increased to 75%. Find the number of boys and girls involved in the project initially.

  • A survey of 900 Americans found that 680 had confidence in the economy

    A survey of 900 Americans found that 680 had confidence in the economy. If 80% of the women and 70% of the men surveyed expressed confidence in the economy then how many men were surveyed?

  • Together, a Big Mac and an order of Super-size fries at mccdonals contains 1200 calories

    Together, a Big Mac and an order of Super-size fries at mccdonals contains 1200 calories. The fries contain 20 more calories than the Big Mac. How many calories are in each

  • A chemist has a 30% saline solution and a 55% saline solution available

    A chemist has a 30% saline solution and a 55% saline solution available. How many milliliters of each of these available solutions should she mix to obtain 700 ml of a 40% solution?

  • ELECTIONS In an election for sheriff, 210 people voted

    1.ELECTIONS In an election for sheriff, 210 people voted. If there were 1,260 possible voters, write a ratio to compare the number of people who voted to the number of possible voters. 2. DENTAL CARE Taru surveyed 60 dentists and found that 48 favored the use of fluoride toothpaste. Write a ratio to compare the number of dentists favoring the use of a flouride toothpaste to all dentists surveyed. 3. E-MAIL One morning, Mirna counted 15 junk e-mails out of 21 e-mails in her inbox. Write a ratio comparing the number of junk e-mails to the total number of e-mails. 4. SURFING One evening at his local surf spot, Jeff counted 28 surfers in the water. Among those, he counted 21 that had hoods on their wetsuits. Write a ratio comparing the number of surfers with hoods to the total number of surfers. 5. MUSIC A music company signed 12 new artists to its label in 2002. Out of the 12, 10 artists have hit songs. Write a ratio to compare the number of artists with hit songs to the total number of artists signed in 2002. 6. BASEBALL Nate had 26 hits at 50 times at bat last season. Write a ratio to compare the number of hits to the number of times at bat. 7. BASEBALL In baseball, David has 10 hits out of 14 at bats. Adam has 15 hits out of 21 at bats. For each player, write a ratio that represents his total number of hits out of times at bat. Are these ratios equivalent? 8. DRIVING Sarah can drive 198 miles on 11 gallons of gasoline. On 6 gallons of gasoline, Rachel can travel 138 miles. Write a ratio that compares miles traveled per gallon of gasoline for each car. Do the cars get the same mileage?

  • Learning.com bought 117 pizzas at Pizza hut for their party

    Learning.com bought 117 pizzas at Pizza hut for their party. Each guest ate 1/10 of a pizza and there was no pizza left over, how many guest did they have for the party

  • If the regular price of an item is $109.00, and the sale price is $83.00, how many percent was the item discounted

    If the regular price of an item is $109.00, and the sale price is $83.00, how many percent was the item discounted?

  • The last episode of Mash was seen by twice as many viewers as the series finale of friends

    The last episode of Mash was seen by twice as many viewers as the series finale of friends. Together the two finales had 157.5 million viewers. How many viewers watched each finale?

  • Ben can paint a kitchen in 5 hours

    Ben can paint a kitchen in 5 hours. Courtney can paint the same room in 6 hours. How long will it take them, working together, to paint the kitchen?

  • There are 8 ounces in a ½ pound

    There are 8 ounces in a ½ pound. How many ounces are in 7 3/4 lbs?

  • One athlete won a 100-meter race with a time of 9.69 seconds

    One athlete won a 100-meter race with a time of 9.69 seconds. Another athlete won a previous 100-meter race in 15.0 seconds. If they ran in the same race repeating their respective times, by how many meters would the faster athlete win?

  • I usually good in solving word problems in statistics

    Could you help me? I usually good in solving word problems in statistics. But I am confused, and when and if I get an answer I'm not confident it's right, or if it was necessary to do some of the steps. The problem is: A local country club has a membership of 600 and operates facilities that include an 18-hole championship golf course and 12 tennis courts. Before deciding whether to accept new members, the club president would like to know how many members regularly use each facility. A survey of the membership indicates that 63% regularly use the golf course, 48% regularly use the tennis courts, and 7% use neither of these facilities regularly. What percentage of the 600 use at least one of the golf or tennis facilities? I thought first I should convert the percents into decimals So then .63, .48, and .07 I'm stuck from there! I needed help asap, and I'm not sure where to go from here.

  • Hello could you help me with this question

    Hello could you help me with this question? We have 500 pounds of plastic with 10% glass mixed in it. We also have 100 pounds of plastic with 30% of glass in it. How many pounds of plastic with 15% glass can you make with two materials? Hint: You will have some 10% glass material left over. The answer is supposed to be 400lbs, but I need to show the work. Thanks!

  • In a certain school there were 5 more seniors than juniors

    In a certain school there were 5 more seniors than juniors. In one marking period, 8 percent of the juniors and 5 percent of the seniors were on honor roll. If the total of juniors and seniors on the honor roll was 10, how many seniors were in the school in the marking period?

  • Julio works as a quality control expert in a beverage factory

    Julio works as a quality control expert in a beverage factory. The assembly line that he monitors produces about 20,000 bottles in 24-hour period. Julio samples 120 bottles an hour and rejects the line if 1/50 of the sample is defective. About how many defective bottles should Julio allow before rejecting the entire line? I tried to mutiply 120 by 1/50. I am not sure where to start on this one.