Ratio
Write the ratio.
The car uses 4/2 cups of oil per 2 cups of gasoline.
Does 7/2 = 5/3
What is yes. 21/10 or 10/21
Which is longer: 1in or 2 cm?
What is 1in.
5/8 as a decimal and fraction.
What is 0.625 and 62.5%
Is 5/8 and 3/2 proportional.
What is yes. Answer: 24:10
Graphing Ratio Relationships
Flour: 1, 2, 3, 4,
Eggs: 5, 10, 15, 23
1:5, 2:10, 3:15, 4:23
A nutrition label shows that every 1/6 of cups of berries has 1/2 gram of salt.
How many gram of iron for every 1/6 cups of berries. Find the unit rate.
What is 3 gram of iron for every cup of berries.
Convert 20 quarts to liters
What is 19 liters.
What number is 0.5% of 200?
What is a=1
A computer store used a markup rate of 40%. Find the selling price of a computer game that cost the retailer $25. What is the markup.
What is $35.
Find and interpret the value of the ratio.
The value of ratio 5/2:2
What is 5/4.
Determining Whether Two Quantities Are Proportional
Are they proportional?
x: 1, 2, 3, 4
y: -2, 0, 2, 4
No. Because in the graph the line does not pass through the origin.
71 pounds = ? ounces
What is 1,136 ounces.
71 ib/1 x 16 oz/1 ib = 1,136 ox/1
Day: Saturday and Sunday
Hours Online: 2(Saturday) and 4.5(Sunday)
The time spent online Sunday is greater than the time spent online Saturday. So, the percent is a percent of increase.
What is 1.25 or 125%
15 ib = ? kg
What is 6.75kg
Find the missing values in the Ratio table
Cups: 3, 12, 15, blank.
Quarts: 3/4, blank, blank, 5/4.
What is Cups: 3, 12, 15, 5
Quarts: 3/4, 3, 15/4, 5/4
The equivalent ratios: 3:3/4, 12:3, 15:15/4, 5:5/4
A scientist estimates that a jet of liquid iron in the Earth's core travels 9 feet every 1/2 hour. How far does the liquid iron travel in 1 day
The ratio of feet to hours is 9:1/2
Distance feet: 9, 18, 432
Time: 1/2, 1, 24.
So, the liquid iron travels about 432 feet in one day.
? km = 7000 m
What is 7.
Percentage Decrease
p= (153-125/153) x 100%
What is 18.3%
? m = 3 km
What is 3000
Liz and Larry are arguing over who makes better chocolate chip cookies. Liz likes to use 3 cups of brown sugar for every 8 cups of flour. Larry prefers to use 2 cups of brown sugar for every 5 cups of flour. Do Liz and Larry use the same ratio of brown sugar to flour?
What is no. The proportion is 36/40
You swam for 26 minutes and completed 20 laps. You swam your 1st 4 laps in 2.4 minutes. How long does it take you to swim 10 laps?
What is 8 minutes. 2.4 minutes for every 4 laps: 2.4/4= 0.6 minute per lap. 16 minutes for every 20 laps: 16/20= 0.8 minutes per lap.
Use conversion factor. (1 U.S. dollar is 22.65 pesos)
You have 20 U.S. dollars and want to buy a video game that cost 800 Mexican pesos. DO you have enough money?
What is 22.65 / 1 USD = 453 pesos. 453 < 800, you do not have enough money to buy the video game.
Percentage
10% of 360 = 36%
What is 63%
5% = 36/2 = 18
2 1/2% = 18/2 = 9
Total = 36+18 +9 = 63%
A college student wants to invest the $12,000 inheritance he received and use the annual interest earned to pay his tuition cost of $945. The highest rate offered by a bank is 6% annual simple interest .At this rate, he cannot earn the needed $945, so he decides to invest some of the money in a riskier, but more profitable, investment offering a 9% return. How much should he invest at each rate?
What is 12000