Proportional relationships
A shirt originally costs $10. It is on sale for $8. What was the discount? ______ % off.
what is 20%
Solve For X
2X-4=10
x=7
Simplify: 0.25 x 3/4 =
3/16 or 0.1875
Simplify: 3.56 + (-4.05) =
- 0.49
Simplify: 5a - 2b - 3 + 2b - 6a
A. –4 C. –a – 3
B. 2a – 4b D. a – 3
C. -a - 3
A shoe store uses a 30% markup on cost. Find the cost of a pair of shoes that sells for $63.
what is $81.90
Solve for C
8 - C = 30
-22
because 30-8 = 22 divided by -1 = -22
Evaluate the following expression.
-6(-9)
what is 54.
because a negative times a negative is a positive.
Simplify: 1/2 - (-0.75) =
1.25
Simplify: (7x + 13) + (3x + 5)
10x +18
Your friends dog goes on a diet and goes from 125 pounds to 110 pounds. What was his percentage weight loss?
what is 12%
Solve for x
2.5x = 36
14.4
Evaluate the following.
-3(8)(-2)
what is 48
Simplify:
3/4 - 0.25 + 1/2 - 0.75 =
0.25
Simplify:
(5x + 7) - (3x + 5)
2x + 2
Scale factor is 1 inch to 3 ft.
If the pool is 18 feet long, how many inches long will it be on the scale drawing?
what is 6 inches
Solve for x
2/3x = 14
x=21
Evaluate
1.5 / (-3)
what is -0.5 or -1/2
Simplify: 2/4 + 6/8 - 0.5 =
3/4 or 0.75
Solve for x. 2x< 10
x < 5
Growing up, you lived in a tiny country village. When you left for college, the population was 840. You recently heard that the population has grown by 5%. What is the present population?
what is 882
Solve for y
2.5y−0.8 = 10
y= 4.32
Evaluate
-5.25 / (-5)
what is 1.05
Evaluate the following
-4 - (-6) -2
what is 0
Solve for x.
3x - 5 > 22
x > 9
The selling price for the shirt is $28. The store bought it for $16. How much did the store mark it up by?
what is 75%
Solve:
17 less than three times a number is 1. What is the number?
6
A water well drilling rig has dug to a height of -60 meters after one full day of continuous use. Assuming the rig drilled at a constant rate, what was the height of the of the drill after 15 hours.
what is -37.5 meters
Explain the rule for subtracting the following
-7 - (-3)
Keep -7 the same, change the subtraction to addition and change the negative 3 to positive 3. The answer is negative 4.
Solve for x. -3x - 5 > 22
x < 9