Rational
Numbers
Numbers
What is the sum of -4 and 7?
3
If 3 pens cost $6, what is the unit rate?
$2 per pen
What is 25% of 80?
20
Simplify : 3x + 4x
7x
What is the area of a rectangle with length 6 and width 4?
24 square units
-11
A cart travels 180 miles in 3 hours. What is the constant of proportionality
60 miles per hour
Convert 0.45 to a percent.
45%
Evaluate : 2x - 3 when x=5
7
Find the circumference of a circle with diameter 10
31.4 units
Compare using <,>, or =: -1/2 ____-0.6
>
If y = 5x, what is y when x = 7.5
37.5
A jacket is originally $60 and is 30% off. What is the sale price?
$42
Solve : 5x = 35
x = 7
Volume of a cube with side length 5?
125 cubic units
A scuba diver is 25 feet below sea level and ascends 15 feet. Where is he now?
10 feet below sea level or -10 feet
A graph goes through the origin and the point (4,10). What's the equation?
y = 2.5x
A student answered 18 out of 20 questions correctly. What percent is that?
90%
Solve : 3x - 7 = 11
x = 6
A triangle has base 10 and height 8. Find the area.
40 square units
Solve : (-3/4) x (8/9)
-24/36 or -2/3
A recipe uses 2 cups of sugar for every 5 cups of flour. How much sugar is needed for 15 cups of flour?
6 cups of sugar
A shirt costs $25. With 8% tax, what's the total cost?
Factor : 6x + 9
3(2x + 3)
The angles of a triangle are in the ratio 2:3:5. What are their measures?
36o, 54o, and 90o