Solve Ratio Problems
A survey showed that 4 out 5 students own a bicycle. Based on this result, how many of the 800 students in a school own a bike?
640 students
Define unit rate
a ratio that is comparing something to a single unit or one
Use a bar diagram, to represent the ratio 3 out 6.
Complete answers on the board.
Monica buys 5 calendars for $10 at Walmart. She buys 5 calendars for $15 at Target. At which store does she spend the least amount of money per calendar?
At Walmart she spends $2/calendar
At Target she spends $3/calendar
Walmart is cheaper!!
5 out of 8 students will buy lunch today. How many of the 720 students in the school will buy lunch?
450 students
Mr. Farley used 4 pounds of hamburger to make 10 burgers. How many pounds of meat did he use per burger?
0.4 lbs. per hamburger patty
A hippo can run 6 kilometers in 15 minutes. At this rate, how far can the hippo run in one minute. Use a bar diagram.
Complete answers on the board.
Which is cheaper?
Option 1: Sara Lee Turkey for $11.16 for 3 pounds
Option 2: Buterball Turkey for $6.58 per pound
Option 1 you are paying $3.72 per pound
In a survey, the ratio of students who prefer popcorn to potato chips is 3 to 4. If the number of students surveyed who prefer popcorn is 360, how many prefer potato chips?
480 students
Sour cream sells for $1.49 for a 8 ounce container. How much are they charging per ounce?
0.18625 = $0.19 per oz
A cat's heart beats about 75 times in 15 seconds
5 beats per second
Which is cheaper?
Option 1: Goldfish $2.99 for 3.5 ounces
Option 2: Cheese-its for $2.70 for 9.3 ounces
Option 2 you pay $0.29
The ratio of houses with swing sets to houses with swing sets to houses without swing sets is 3 to 5. I'd the number of houses with swing sets is 270, how many houses do not have swing sets?
480 students
There are 12 slices of Velveeta cheese that sell for $13.67. How much are you paying for each slice?
$1.139= $1.14
Caleb paid $19.80 for 9 bagels. How much did he pay for each bagel?
$2.20 per bagel
Which is cheaper?
Option 1: Kelley's flowers costs $65.75 for 3 bouquets
Option 2: Greens 'N Things costs $98.40 for 5 bouquets
Option 2 you spend $19. 68 per bouquet of flowers
Determine if the following is true or false:
In equivalent ratios, if the numerator of the first ratio is greater than the denominator of the first ratio, then the numerator of the second ratio is less than the denominator of the second ratio.
FALSE
Tara can type 180 words in 4 minutes. At this rate, how many words can she type in 10 minutes?
450 words in 10 minutes
If you are traveling at 60 miles per hour, how many minutes will it take you to travel 5 miles?
5 minutes
Which is cheaper?
Option 1: School supplies cost $29.10 for 3 items at Office depot
Option 2: At Walmart you spend $58.20 for 6 items
They are equal, at both stores the cost per item is $9.70!!