Ratios/Proportions
If there are 6 apples and 9 bananas, what is the ratio of apples to bananas?
2:3
How many milliliters or in 6 liters?
6000 milliliters
a negative times a negative equals what?
a positive
Distribute: 5(2x +4)
10x + 20
3x=6
x = 2
If the ratio of pink to purple crayons is 3:9, what is the ratio of pink to purple crayons?
1:3
Covert 20 inches to centimeters (1in = 2.54 cm).
50.8 cm
-25/5
-5
Distribute: -6(-x - 3)
6x +18
x - 7 = 15
x = 22
If the ratio of yellow to black marbles is 3:4, how many black marbles are there if there are 24 yellow marbles?
32 yellow marbles
If there are 5280 feet in a mile, how many feet are there in 5 miles?
26400 feet
What operations have the same sign rules?
Mulitplication and division
Simplify: 2(x +1) +3x
5x +2
2x + 8 = 10
x = 1
A recipe requires 3 cups of sugar for every cup of flour. If you have 2 cups of flour, how much sugar do you need?
6 cups of sugar
Covert 4 yards to feet.
12 feet
If you subtract a larger number from a small number is your answer negative or positive?
negative
Simplify: -3+4(5x - 2)
20x - 11
-4x + 1 = 9
x = -2
A car travels 170 miles on 5 gallons of gas. How many miles can the care travel on 18 gallons of gas?
612 miles
How many grams in 4.5 kilograms?
4500 grams
6-8
-2
Simplify: -7x + 8 -(x - 4) + 5
-8x + 17
x/4 = -5
x = -20