Rates Prealgebra Ratios, Proportions, Units and Rates Rates Questions Fred worked these hours during the week: #8, 4 1/2, 3 3/4, 7 1/2, 4 3/4#. If he is paid $5.15 per hour, how much did he earn? Water is flowing out of an artesian spring at a rate of 8 cubic feet per minute. There are 7.5 gallons of water per cubic foot. How many minutes will it take for the water to fill up a 300 gallon tank? How many minutes will to drive to Los Angeles from San Francisco if an average speed of 72 mi/hr is maintained? Harold bought 5 apples for $1.30. What is the unit price? If Brendan drove 4 miles in 8 hours, how many miles did he drive in 3 hours? A bag of potatoes weighing 5 pounds and 12 ounces cost $2.07. What is the cost of 1 pound of potatoes? What is a rate? What is a ratio? How are rates calculated? How does rate change? How can rates go negative? How do you find a unit rate? What is the unit rate for $91 in 14 hours? A skydiver falls 144 feet at 3 seconds. What is the unit rate? What is the unit rate for someone who can type 8,580 words in 2 hours and 45 minutes? How are unit rates determined? How can unit rates be helpful at the supermarket? How are unit rates written? Mr. Stanford wrote 65 pages of a travel brochure. He wants to divide it into 8 equal sections. How many pages will be in each section? Eight pens cost $9.20. What is the unit price? Calculates the Principal that produced an interest of $650 at the rate of 4 % per annum in 150 days? Calculate using simple interest rate assumption? Charles is going to buy 3 computer tables for $390. If he pays the same rate, how much would it cost for 8 computer tables? Bob lays 200 bricks in 1 hour. How long would it take Bob to lay 960 bricks? A car traveled 20 miles in 4 hours. What is the unit rate of the car's speed? What is the unit rate form of #($57)/(6 hrs#? How do you convert 10 miles per hour to the unit rate form of feet per minute? Question #10809 Question #10ec0 A car travels 1 mile in 75 seconds. At this rate, how many miles will the car travel in 1 hour? While selecting a gift, girls want to ensure that they do not buy the same gift. Examine whether the events of selecting gifts by two girls are dependent or independent? What is the unit price for an orange if a dozen oranges cost $1.92? What is the unit rate of 130 miles in 2 hours? The largest yellowfin tuna caught by fishers weighed 387 pounds. The largest grouper caught weighed 436 pounds. About how much more did the grouper weigh than the yellowfin tuna? A car and a truck were traveling to Asmara at constant speeds. The car overtook the truck when they were 420 km from Asmara. The car arrived in Asmara at 6:30 p.m. while the truck was still 120 km away. The truck arrived 8:30 p.m. What was the car speed? Nikos sold muffins at his club's bake sale. He spent $28.50 on supplies. He sold his muffins for $0.75 each, and made a profit of $36.75. How many muffins did Nikos sell? What is the rate and unit rate of 420 miles in 7 hours? What is the rate and unit rate of 360 customers in 30 days? What is the rate and unit rate of 40 meters in 16 seconds? What is the rate and unit rate of $7.96 for 5 pounds? How do you write the rate 93 miles in 31 hours as a unit rate? Sarah sells 5 newspapers for $15. What is the unit rate for 1 newspaper? How much interest will #$500# earn in three years at #6%# simple rate of interest? Donna Kempton sews buttons on shirts at a laundry. She makes $0.50 per button. How much is Donna's pay if she sews 215 buttons? Question #0b474 Which of the two is a better buy - #8# rolls costing #$2# or #10# rolls costing #$2.79#? You can buy 5 T-shirts at Baxter's for the same price that you can buy 4 T-shirts at Bixby's. If one T-shirt costs $11.80 at Bixby's, how much does one T-shirt cost at Baxter's? Ned has scored 84 points in the first 6 games of the basketball season. How many points per game has Ned scored? A group of 8 students purchase 4 pizzas at $5 each, 2 orders of breadsticks at $2 each, and 8 drinks at $1.50 each. How much does each student owe before tax? Your friend's house is #165#. How much time it will take if you are riding a bike at #15# #mph#? One motorcycle is travelling at a speed of #45mph# and the other motorcycle is travelling at a speed of #65mph# both starting at the same time. When they will be #385# miles apart? A thoroughbred can run 1/2 mile in about 3/4 minute, what is the horse's speed in miles per hour? How do you write the ratio 424 kilometers in 8 hours as a unit rate? Question #ba3d1 Question #82836 Question #68fe8 Question #650f6 Papa drove at an average speed of 30 mph to the airport. He boarded a helicopter and travel at 60 mph to the corporate office. The entire distance was 150 miles and took 3 hours. what was he distance from the airport to the office? An elevator descends 1,500 feet in 60 seconds, how do you find the change in height per second? Question #bbd01 It takes Mara 50 minutes to walk to her friend's house 1 2/3-miles away. What is her walking pace in miles per hour? Cole ran 3 miles in 27 minutes . Carson ran 2 miles in 20 minutes. Aaravind ran 5 miles in 35 minutes if each student ran at a constant rate , who is the fastest runner? A tortoise is walking in the desert. It walks 12.5 meters in 5 minutes. What is its speed? How do you find the unit rate for 44 breaths in 2 minutes? Logan sailed his sailboat 1,260 yards in 30 minutes. What is the average he traveled per minute? Judy can buy a 16oz box of cereal for $5.49 or a 20oz box for $5.99. Which is the better buy? Ms. Douglass rides her bike about 36 miles in 4 hours. If she maintains a constant speed, how many miles can she ride each hour? A four-person relay team completed a race in 72.4 seconds. On average, what was each runner's time? It takes Olive 20 minutes to read 5 pages of her book. At what unit rate is Olive reading? Chris drove 250 miles using 9 gallons of gas. At this rate, how many gallons of gas would he need to drive 275 miles? A hot air balloon rose from a height of 100 meters to 400 meters in 3 minutes. What was the balloon's rate of change? An 8-ounce package of cheese is $2.24. A package is t $3.75. A 28-ounce package is $8.12. What size is the buy? In 1/4 hour, Kyle jogged 2 1/2 mi. Dee jogged 1 3/4 mi in 10 minutes Who ran at a faster rate? What is that rate? What is the unit rate of $30 for 4lb? What is the unit rate of 3.5 pages in 2 hours? Nasane can do 50 sit-ups in 3 minutes. At this rate, how many can he do in 12 minutes? A case of canned vegetables costs $30.96. There are 24 cans of vegetables in a case. What is the unit price p, per can? Eric read 150 pages in one hour. What is Eric's reading rate in pages per minute? Celine babysat for 5 hours and earned $27. what was her pay per hour? The local pizzeria makes 30 pizzas in an hour. How many pizzas do they make in a 10 hour day? Question #6a61c In 20 minutes, I ate 13 sub sandwiches. What is my rate in sandwiches per hour? Lonnie used 26.75 gallons of gas to drive his truck 508.25 miles. How many miles per gallon did he get? In a week, 15 hens laid 75 eggs What is the unit rate for eggs per hen? Aki bought 3 3/4 pounds of spinach for $6.88. Using the unit rate, how much would 1 1/2 pounds of spinach cost? Shari drove for 90 miles in the city. When she got on the highway, she increased her speed by 20 mph and drove for 130 miles. If Shari drove a total of 4 hours, how fast did she drive in the city? The cost of a loan for $294 over one year is $8.82. What was the rate on the loan? What is the unit rate of 50 goals scored in 25 games? What is the unit rate of $6.00 for 12 oranges? Tennis ball machine can launch 60 tennis balls in 12 minutes. At this rate, how many tennis balls can it launch in 2 hours? Gabby has 5 weeks to read a novel. She reads 15 pages of a novel in 3/7 week. At this rate, will Gabby finish the 200-page book in time? A bookstore was selling 5 books for $26.35. Online the you could buy 2 books for $10.58. Which place has a lower unit price? A runner was training for a race. She was able to run 16 miles in 96 minutes. To the nearest hundredth, what is her average speed? How do you write each rate as a unit rate:14 hours in 2 weeks? Metropolitan Middle School has 564 students and 24 teachers. Eastern Middle School has 623 students and 28 teachers. Which school has the lower unit rate of students per teacher? An antelope ran 237 ft in 3 seconds. If the antelope continued to run at the same rate, how many seconds would it take him to run 790 ft? There are 365 days in a year. How do you find the number of days in 3 years? Jay made 8 of 10 free throws. Kim made 25 of 45. Who made free throws at the better rate? Jason eats 10 ounces of candy in 5 days. How many pounds does he eat per day? How long will it take Jason to eat 1 pound of candy? Takes Sarah 50 minutes to walk to her friend's house #1 3/4# miles away. What is is her walking pace in miles per hour? If a gardener can mow a lawn in 20 min, what portion of the lawn can the gardener mow in 1 min? The speed limit is 50 miles per hour. Kyle is driving to a baseball game that starts in 2 hours. Kyle is 130 miles away from the baseball field. If Kyle drives at the speed limit, will he arrive in time? Noel read 90 minutes each day for 6 days. Tyra read 60 minutes each day for 8 days. What is the difference, in minutes, between the total amount of time Noel read and the total amount of time Tyra read? At the school book sale, Michael bought 3 books for $6. Darnell bought 5 books for $10. Are these rates proportional? What is the unit price for a piece of cheese if 1.24 pounds costs $11? At the copy shoppe, 18 copies cost $ 1.08. At that rate, how much will 40 copies cost? Question #1e9b2 40 pounds of chocolate fudge sold for $2.15 per pound and vanilla fudge sold for $1.90 per pound. Your class made $158.20. How many pounds of vanilla fudge were sold? Tiffany pays $40 for 160 minutes of talk time on her cell phone. How many minutes of talk time does she get per dollar? A school has 825 students and 55 teachers. How many students are there per teacher? The Student Organization purchased a bag of 48 Hershey kisses for $4.35 and bag of 36 Hershey kisses for $3.75. Which bag of kisses was a better purchase? How do you express 24 texts in 2 hours as a unit rate? How do you express cups for $2 as a unit rate? Kenneth drove 194.3 miles in 3 7/20 hours. What was his average speed? How do you express as a unit rate: 2400 miles in 48 hours? Penny worked 8 hour and earned $70. What is her hourly rate? Keeley buys songs from a music website. She buys 35 songs for $26.25. What is the price per song? A 12 pack of soda is roughly $3.75. What is the cost per can of soda? Mr. Ito is spreading mulch in his yard. He spreads 4 2/3 square yards in 2 hours. How many square yards can he mulch per hour? Kaipo arrives in my class 45 seconds after leaving math class which is 90 meters away. How fast did he travel? Larry reads 42 pages in 7 nights each week. Anna reads 62 pages in 5 nights each week. Who reads more pages in a week? A car travels 50 mph for 10 minutes. How many miles per minute is the car traveling? How do you find the unit rate of 405 rotations in 5 minutes? During the first half of the year, Beth sold an average of 872 stamps each week. If she continues at this rate, how many stamps will she sell in the next 26 weeks? Patricia paid $312 for 4 nights at a hotel. What was the nightly rate for her room? How do you find the unit rate of Three medium apples have about 285 calories? Question #adba6 Question #2f2a5 If it takes 5 minutes to read 300 words how many words per minute does this represent? Also how many minutes does it take to read 1 word? Jan takes #1.6# minutes to run a quarter of a mile. How long will he take to run #1# mile? A unit rate is a ratio in which the denominator is ________________? There are #24# students in the science class of Mr. Sato. He wants to give #3# magnets to each pair of students. He has already given #9# pairs of students their #3# magnets. How many more magnets does he need? Articles are bought at #Rs.45# per dozen and then sold at a rate of #Rs.85# per score. What is the gain percent? Luna observed that in the last 12 issues, 384 of the 960 pages contained an advertisement. If there are 80 pages in this weeks edition, how many pages can she predict will have advertisements? Question #5ec5e Light travels at the rate of #1.86 times 10^5# miles per second. How far does light travel in one minute? The bakers at Healthy Bakery can make 250 bagels in 2 hours. How many bagels can they bake in 17 hours? What was that rate per hour? Question #43d04 Question #856ce Question #0cc0e If you can buy ten bunches of seedless black grapes for $25, then how many can you buy with $5? Bob roller skates 48 km in 4 hours. What is his average speed in kilometers per hour? Question #c9dc0 You have 105 cowry shells. If a dozen eggs cost 10 cowry shells, how many eggs can you purchase? Question #268cc Paige mows 1/6 acre in 1/4 hour.how many acres does paige mow per hour? Ratios, Proportions, Units and Rates View all chapters Ratios and Proportions Rates Unit Conversions Metric System Unit Conversion Prev Next