Ratios
The definition of a ratio is...
a comparison of two or more different quantities
What is 10% of 50?
5
Which discount would be greater from total sale that was $200? By how much?
$20 off discount
or
20% off discount
The 20% off would be greater by $20
20% of 200 is 40. $20 off of 200 would be only $20.
a/8 = 15/20
a = 6
If 3 ft are in 1 yard, how many feet are in 50 yards?
150 ft
What are the three ways to write a ratio?
1. Fraction
2. Colon
3. With the word "to"
50 is what percent of 220?
22.8%
Derek wants to buy a skateboard for $56.00. The store is offering a discount of 5% on all items. What price will Derek pay for the skateboard, not including tax?
$53.20
12/b = 5/8
b = 19.2
If there are 100 cm in 1 meter, how many centimeters are in 1.45 meters?
145 cm
A ratio table for a proportional relationship can display multiple ______________ ratios.
Equivalent
1% of 8000 is what number?
80
How do you calculate sales tax?
(Total purchase amount)(Tax Percentage as a decimal) = (Amount of sales tax)
2/3 = c/15
c = 10
if there are 1000 liters in 1 kiloliter, how many liters are in .85 kiloliters?
850 liters
Equivalent ratio, when they are graphed on a coordinate plane, produce a _________ _________ that highlights their multiplicative relationship.
straight line
15 is what percent of 72?
20.8%
Jose gets his hair cut for $12. He gives his barber a 15% tip. How much does he give the barber for a tip?
$1.80
7/8 = 84/d
d = 96
If there are 5280 ft in 1 mile, how many ft are in 2.5 miles?
13200 ft.
Equivalent Ratios reduce to the same ____________ ___________.
Unit Rate
375 is 75% of what number?
500
Veronica buys a shirt for $22.00. If the sales tax is 5.5%, what is the total price Veronica pays for the shirt including tax?
$23.21
2/5 = (1+4)/e
e = 12.5
If a replica car has a scale of 1 cm = 2 yard, how long is an actual car that has a replica that is 2.8 cm long?
5.6 yards