Rates
Three milkshakes cost $9.75. At this rate, how much do 2 milkshakes cost?
$6.50
Explain why 6:4 and 18:8 are not equivalent ratios.
In the original ratio, 6 is being multiplied by 3 and 8 is being multiplied by 2.
In order for a ratio to be equivalent, both numbers have to be multiplied or divided by the same number.
There is a 10% off sale on laptop computers. If someone saves $35 on a laptop, what was its original cost?
$3,500
For every 10 kilograms there are 22 pounds.
An average newborn weights 3.5 kilograms. A baby deer weighs 6 pounds.
Which weighs more? Explain.
A newborn baby weighs more.
Two planes travel at a constant speed. Plane A travels at 2,800 miles in 5 hours. Plane B travels 3,885 miles in 7 hours. Which plane is traveling faster?
Plane A travels farther in 1 hour.
3 bananas cost $.99. At this rate, how much do 5 bananas cost?
$1.65
In a fruit basket there are 9 bananas, 4 apples, and 3 plums.
For every 3 bananas there is one ________
plum
There are 15 children in a class that like the color purple and there are 25 kids in the class in total. What is the percentage of students that like purple?
60%
For every 10 kilograms there are 22 pounds.
Scott the beagle weighs 33 pounds. Convert Scott's weight into kilograms.
15 kilograms
Order these objects from heaviest to lightest.
Note( 1 pound = 16 ounces, 1 kilogram = 2.2 pounds, and 1 ton= 2,000 pounds)
school bus = 9 tons
horse = 1,100 pounds
elephant = 5,500 kilograms
grand piano = 15,840 ounces
school bus, elephant, horse, then grand piano.
Andre paid $13 for 3 books. Diego bought 12 books priced at the same rate. How much did Diego pay for the 12 books?
$52
A caterer needs to buy 21 pounds of pasta to cater a wedding. At a local store, 8 pounds of pasta cost $12.
Write a ratio for the given information about the cost of pasta. Then simplify it.
In order to get all points, it must be simplified.
8:12 both divided by 4 gives you 2:3
3 out of 15 friends decided to go to the movies. what percentage of friends did not go?
80%
20% went there fore 80% did not go.
For every 10 kilograms there are 22 pounds.
A car that is 1,400 kilograms and an elephant weights 4,000 pounds.
Convert the elephants weight to kilograms and then decide which weighs more.
4000 x 45/100= 1,800
The elephant weights 1,800 kilograms compared to the car that weights 1,400 kilograms. So the elephant weights more.
504 divided by 63
8
A copy machine can print 480 copies every 4 minutes.
How many copies can it print in 10 minutes?
1,200 copies
In the fruit bowl there are 6 bananas, 4 apples, and 3 oranges
For every 1 orange, there are ______ bananas
2
Lin's family has completed 40% of a trip. They have traveled 20 miles. How long is the whole trip?
50 miles.
Tyler is 57 inches. What could his height be in centimeters?
144.8 or 145
Elena and Jada are 17 miles apart on a path when they start moving toward each other. Elena runs at a constant speed of 5 miles per hour, and Jada walks at a constant speed of 3 miles per hour.
How long does it take until Elena and Jada meet?
16.375 minutes
Diego can type 140 words in 4 minutes.
At this rate, how long will it take him to type 385 words?
11 minutes
There are 2 mixtures of light purple paint.
Mixture A is made with 5 cups of purple paint and 2 cups of white paint.
Mixture B is made with 15 cups of purple paint and 8 cups of white paint.
Which shade is lighter. Explain your answer.
Mixture B because the ratio would be 15:8 which is really 15/8 which equals 1.87. Whereas mixture A would be 5:2 which is really 5/2 which equals 2.5.
A bakery makes 40 different flavors of muffins. 25% of the flavors have chocolate as one of the ingredients. How many flavors have chocolate and how many don't?
25% of 40 have chocolate which is 10
75% of 40 muffins don't have chocolate which = 30.
For every 10 kilograms there are 22 pounds.
Fido the Labrador weighs 88 pounds. Find Frido's weight in kilograms.
40 kilograms
A bag contains 120 marbles. Some are red and the rest are black. There are 19 red marbles for every black marble. How many red marbles are in the bag?
6