Fraction and Percentage
10 percent of 45
4.5
How many degrees are in a rectangle ?
360°
3x+5 =35
find x
10
A class has 20 students. 12 are girls. What fraction are boys?
2/5
If 3 pens cost $15, how much for 5 pens?
$25
20 percent of 80
16
Find the area of a triangle with height 6 cm and base 4 cm.
12 cm²
If y = 2x + 2, what is y when x = –4?
–6
A shirt costs $30. It’s on sale for 30% off. New price ?
$21
What is the constant of proportionality in y = 1/2x?
1/2
Find the sum of 9/10 + 4/5
1 7/10
The volume of a cube with side length 3?
27
Q: Solve: -2x – 4 = 10.
x = - 7
A train travels 600 km in 5 hrs . How long will it to take travel 180 km .
1.5 hours
320/8
40
A recipe calls for 6/9 cups of sugar. How many cups of sugar needed for half of the recipe ?
3/9 cup
A triangle has angles 40° and 70°. Find the missing angle.
70°
Combine like terms 2x - 6x + 5 -2x - 2
-6x + 3
Gabe talks 350 words in every 30 minutes . How much time he will take to speak 1050 words.
1.5 hrs / 90 minutes
A map scale shows 4.5 inch = 10 miles. How many miles are 9 inches?
20 miles
A book costs $50 after markup of 25 percent , what is the wholesale price
40
Expand: (x + 3)(x + 2).
x² + 5x + 6
The average of 5 test scores is 80. If 4 scores are 75, 85, 90, and 70, what’s the 5th score?
80
On a graph ( 40, 60 ) represents miles and minutes . Y coordinate represents miles. In 3 minutes how many miles can be plotted .
4.5 miles