Ratios & Proportions
What is a ratio?
A comparison of two quantities by division.
What is 1/2 as a decimal?
0.5
Solve: x + 7 =10
x = 3
How many degrees are in a triangle?
180 degrees
What is the mean of 2,4,6?
4
Express the ratio 4 to 9 as a fraction.
4/9
Add: 0.4 + 0.75
1.15
Simplify: 3(2+4)
18
Find the area: Rectangle (5cm x 4cm)
200 sq cm
What is the mode of 5,5,6,7?
5
If a recipe calls for 2 cups of sugar for every 5 cups of flour, how much sugar is needed for 10 cups of flour?
4 cups of sugar
Subtract 5/6 - 1/3
1/2
Evaluate: 2x + 1 when x = 3
7
What is the volume of a cube with side 3cm?
27 cubic cm
What is the median of 3, 8, 6, 4, 7?
6
Write a ratio for 6 cats to 18 total animals.
6:18 or 1:3
Multiply: 3/5 * 1/4
3/20
Solve: 4x = 24
x = 6
Find the perimeter of a square with side 6cm.
24cm
Define "range" in a data set.
The difference between highest and lowest.
If 3 pencils cost $1.50, how much for 10 pencils?
$5.00
Divide: 2.4 / 0.4
6.0
Write an expression: "twice a number plus 5"
2x + 5
Identify a shape with only one pair of parallel sides.
Trapezoid
What type of graph shows parts of a whole?
Pie chart