Solve equations
Solve inequalities
Simplify Expressions
Rate-Factor
Tax and Discounts
100
20A = 5
A = 1/4
100
5r ≤ 40
r ≤ 8
100
6a + a + b + 4b
7a + 5b
100
26 mi/gal · 17.5 gal
455 miles
100
After a discount of 40%, a rug cost $485. What was the original price of the rug?
$808.33
200
−6B = −420
B = 70
200
4r + 9 > 5.5
r > −0.875
200
8x - x - x
6x
200
How many seconds are in a day?
200
Bill ordered a meal for $12.95. A 5% sales tax was added. If Bill tips 20%, how much will his meal have cost in all?
$16.32
300
2(x + 3) + 5 = 25
x = 7
300
−6t - 5 ≤ 25
t ≥ −5
300
−8 · 7 · −2 · −1 · −5 · 1 · 3 · −6
will the product be positive or negative, explain why
negative because there are an odd number of negative signs
300
The average speed of cyclists in the 2005 Tour de France was a record, 41.654 kilometers per hour. What was the average speed in miles per hour? (1 km ≈ 0.62 mi)
25.83 miles per hour
300
A charity met 35% of its goal when it had raised $50,000. What was its goal?
$142,857.14
400
-3/7p = 36
p = -84
400
6 < −w + −w
w < −3
400
m x m x p x m x p x m
m4 x p2
400
A new car is advertised to get 24 miles per gallon of gas. If gas costs $3.29 per gallon, how much would a person pay for enough gas to drive 120 miles?
$16.45
400
Harry ate 30% of a pie. Ted ate 60% of what was left. How much of the whole pie did Ted eat?
42%
500
3(x + 2) - 5 = 2x + 8
x = 7
500
− k/21 + 27 > − 3/7
k < 576
500
2(x-8) + 7(x + 2)
9x -2
500
If Marlene runs 4.85 miles an hour and she runs 2 hours each day, how many miles does she run in 8 weeks?
500
A store sells a sweater for $50, offering a 20% discount and then adding a 6% sales tax. What is the final price of the sweater?
$42.40