Percents
160 is what percentage of 40?
400%
How long would it take to walk to school?
30 minutes
How many centimeters are in 3/4 meter?
75 centimeters
The distance of a doorknob from the floor is about 1 _____________.
The thickness of a fingernail is about 1 _____________.
The length of a piece of printer paper is about 1 _____________.
1 yard or meter
1 millimeter
1 foot
What number is 40% of 160?
64
How long would it take to get there?
2 hours
How many quarts are in 4.25 gallons?
17 quarts
An ant travels at a constant rate of 30 inches every 2 minutes.
How many inches per minute does it travel?
How many seconds per inch does it travel?
15 inches per minute
4 seconds per inch
There are 15 pieces of fruit in a bowl and 6 of them are apples. What percentage of the pieces of fruit in the bowl are apples?
40%
How long would it take to get there?
2.5 hours
How many inches are in 2.5 yards?
90 inches
A car is traveling at a constant speed. it takes 3 hours for the car to travel 126 miles.
What is the speed of the car?
42 mph
Lin’s family has completed 70% of a trip. They have traveled 35 miles. How far is the trip?
50 miles
Lin runs 5 laps around a track in 6 minutes. How many laps per minute is that?
5/6 (or 0.83) laps per min
Which weighs more: a watermelon that weighs 7.5 kilograms or a baby that weighs 12 pounds?
(Note: 1 pound is about 0.45 kilograms)
The watermelon is heavier (baby weighs about 5.4 kg, watermelon weighs about 16.6 lbs)
On Saturday, Elena read 40% of a 225-page book. That day, Jada read 45% of a 200-page book.
Who read more pages that day?
They both read 90 pages
A store is having a 20%-off sale on all merchandise. If Mai buys one item and saves $13, what was the original price of her purchase? Explain or show your reasoning.
$65
Lin runs 5 laps around a track in 6 minutes. How many minutes per lap is that?
1 minutes 12 seconds per lap
(1.2 minutes, or 1 1/5 minutes)
Is 3.5 cups more or less than 1 liter? Explain or show your reasoning. (Note: 1 cup is approximately 236.6 milliliters.)
Less
3.5 cups is 828.1 mL
there are 1000 mL in 1 L
If 𝑥 represents a number, does 2/5 times x always represent 40% of that number? Explain your reasoning.
yes, because 1/5 of a number is the same as 20%, because 20 is 1/5 of 100
Therefore, 2/5 would always be the same as 40%