7.RP – Ratios & Proportional Relationships
If 3 notebooks cost $6, what is the cost of 1 notebook?
$2
What is –8 + 13?
5
Simplify: 3x + 5x
8x
What is the area of a rectangle with length 8 and width 5?
40 square units
What is 25% of 80? :
20
A car travels 180 miles in 3 hours. What is the unit rate?
60 Miles per hour
What is –6 – 9?
–15
4(x + 2)
4x + 8
What is the circumference of a circle with radius 3?
18.84
A coin is flipped once. What is the probability of getting heads?
1/2
Are the ratios 4/6 and 10/15 proportional?
Yes
What is (–4)(–7)?
28
2x + 5 = 17
x = 6
Two angles form a straight line. One angle is 125°. What is the other angle?
55
What quadrant is the point (–4, 5) located in?
Quadrant II
A recipe uses 2 cups of flour for every 3 cups of sugar. How much flour is needed for 12 cups of sugar?
8 cups
What is 3/4 ÷ (–1/2)?
–1 1/2
3(2x – 4) + x
7x – 12
What is the area of a circle with radius 4? (Use 3.14)
50.24 square units
Which number is irrational?
A) 1/2
B) 0.75
C) √2
D) –4 :: √2
C) √2
A proportional relationship is shown by the equation y = 4.5x. What is the constant of proportionality?
4.5
What is –2.5 + 6.8 – 3.1?
1.2
Are these equivalent?
2(3x + 1) – x and 5x + 2
Yes
A rectangular prism has length 6, width 3, and height 4. What is the volume?
72
A shirt costs $40 and is on sale for 15% off. What is the discount amount?
$6