Expressions & Equations
Solve
0.5/-0.4 + - 0.25 =
(3.5 - 9.75) / (-2.5)
Kelsie sold digital cameras on her website. She bought the cameras for $65 each and included a 60% markup to get the selling price. To the nearest dollar, what was the selling price for one camera?
$104
A pound of beef costs $4.25. A pound of turkey costs $2.85. How much more does 1 pound of beef cost than 1 pound of turkey?
$1.40
Find the sum of
(2x – 5y) and (x + y)
3x - 4y
Suzanne bought a sweater at the sale price of $25. The original cost of the sweater was $40. What percent represents the discount that Suzanne received when buying the sweater?
37.5%
Yesterday, the temperature at noon was 11.4°F. By midnight, the temperature had decreased by 15.7 degrees. What was the temperature at midnight?
-4.3 degrees
(7x – 5) – (3x – 2)
4x - 3
Last week Len spent $18 to bowl 4 games. This week he spent $27 to bowl 6 games. If each of these bowling games costs the same amount of money, what is the constant of proportionality between the money spent and the number of games played?
4.5
Which expression can go in the blank to make the equation true?
-4.5 + 4.4 + _?_ = 0
-0.1
120 students in total were surveyed, and 36 of those surveyed were found to take the train to school. If the total population of students is 380, approximately how many take the train to school?
114
Factor the expression: 16x+8
8(2x+1)
There are 275 seats on a train. 99 of the seats are empty. What percentage of the seats are taken?
64%
What is the value of the expression (2/3 - 5/6) divided by 3/4, in lowest terms?
- 2/9
Gretchen makes pillows using 1⅝ yards of fabric per pillow. She has 8¼ yards of fabric. What is the greatest number of pillows Gretchen can make?
5 pillows