Writing ratios
A ratio...
compares 2 things
What is a unit rate and how do you find it?
per 1 of something. divide
When comparing two ratios, it is essential to make the corresponding quantities (one from each ratio) the ____
same value.
A fruit stand is selling 8 bananas for $1.25. At that rate how much will 24 bananas cost?
$3.75
The result of dividing 300 by 100
3
Percent means _______.
out of 100
16 to 12 or 4 to 3
If your heart beats 180 times in 3 minutes what is the rate in beats per minute?
60 beats per minute
A 12 oz box of crackers costs $2.40 and a 16 oz box costs $3.30. Which is a better deal?
12 oz box is the better deal. The 12 oz box costs $0.80 for 4 oz. The 16 oz box costs $0.825 for 4 oz.
At a copy center you can make 100 copies for $4.00. How much will it cost for 450 copies?
$18.00
Two ways to divide to make 1/2.
1 divided by 2, 2 divided by 4, 3 divided by 6, x divided by 2x
The meaning of 100%
1 whole, full, or all.
In an arrangement of flowers there were 4 roses and 6 carnations. Write the ratio of roses to carnations in the 3 forms.
4:6, 4/6 4 to 6
There are 1,332 calories in a bag of Doritos. If there are 9 servings, how many calories are there per serving?
148 calories per serving
Who is driving faster: Dan who drove 300 miles in 5 hours or Jon who drove 400 miles in 7 hours?
Dan
If it takes you 2 minutes to type 150 words, how long would it take you to type 600 words?
8 minutes
Divide these two numbers to get a quotient of 3/7.
3 divided by 7
The percent when the part is 22 and the whole is 100
22%
In a class of 25 students, 14 students like basketball as their favorite sports. What is the ratio of students who don't like basketball best to those who do like basketball best.
11 to 14
If you drive 450 miles in 6 hours, how fast were you driving?
75 miles per hour
Who runs slower: Polly who ran 5 miles in 42 minutes or Lacey who ran 3 miles in 25 minutes?
Lacey
You can run 1 mile in 8 minutes. How long should it take you to run 3 miles?
24 minutes
Divide 11 by this number to get a quotient of 2 1/5.
5, 5 • 2 = 10 and 5 • 1/5 = 1, so 5 • 2 1/5 = 11 and 11/5 = 2 1/5.
74% (give the part and the whole)
The part is 74 and the whole is 100.
To make a punch, you use 3 cups sprite, 2 cups apple cider and 4 cups orange juice. What is the ratio of orange juice to total cups?
4 to 9
If you spend $8.16 on 6 pounds of apples, what is the unit rate per pound?
$1.36 per pound
Who scored more points per game: Henry with 83 points in 9 games or Elias with 132 points in 12 games?
Elias
The ratio of tennis balls to golf balls is 7 to 1. There are 48 balls total, how many golf balls are there?
6 golf balls
3 6/8 or 3 3/4
30% of 80.
24 (10% of 80 is 8. 30% is three 10%'s, and 24 is three 8's)