Ratios
3000 apples grow in each row at an orchard. If there are 4 rows, how many apples are there?
12,000 apples --> 3000 * 4
A ratio is... (hint: what does it do?)
Comparing 2 things
$13 : 4 gallons of gas
? : 1 gallon
$3.25
108 divided by 4 equals?
27
$1 is = 20 nickels. How many dollars is 380 nickels?
19
15: 5 = ____ : ____
3 : 1
Proportional Relationship is...
the relationship between X and Y, starting at (0,0)
17.5m in real life : 1.75cm on the map.
_____________ : 1cm?
10m
8^2 is the same thing as 8 * 2, true or false
False, 8*8
1 gallon is = 128 fl.oz. How many gallons do I have with 448 fl.oz.?
3.5 gallons
1 : 1/4 = ___ : 1 1/4
5 ---> 1/4 * 5 = 5/4 = 1 1/4
Constant of Proportionality means to find what?
The "1".
1/3 cup of flour : 2 cups of water
1 cup of flour : _____ cups of water
6 cups
15% of 145 = _____
21.75
If 1000g = 1 kg, then how many g are there in 75.125kg?
75,125g
7 apples : $15... so... 8 apples : $____
$17.14
What does K stand for?
Constant of proportionality--> y/x
1/2 : 3
___ : ___
3 : ___
18
-15 + 5 = ____
-10
$1 = 113.41 Japanese yen. If I have 500 yen, how much $ do I have?
Simplify the coordinate (18, 6) as a ratio
3:1 ---> 18,6 = 18:6, the divide by 3
What is the formula for finding a proportional relationship graph line?
y = k(x)
$0.65 gets you 5 pieces of gum
How much does 38 pieces of gum cost?
$4.94
-18 - (3*-10) = ____
12
$1 US = 1.25 Canadian Dollars. Each Canadian Dollar = 16.59 Pesos. If I have $100 US, how many Pesos do I have?
2073.83 Pesos --> $100 US = 125 Canadian. 125 * 16.59 = 2073.83 Pesos.