Combining Signed Numbers
8 + (-3)
5
4(3) - 2 + (6+4*2)
24
5+ x2 - 3 + 3x
x2 +3x +2
Leah borrows $1500 for 2 years at a 12% interest rate. Find the interest on the loan.
Hint: I=principle * rate * time
$360
4.025+3.971
7.996
-23 + (-11) - (-15) + 21
2
3(-3) + (7+4)
2
Find the value of 6(x+2) + 7 when x=2
31
Dominica invested $2000 for 3 years at an interest rate of 7%. How much interest did she earn on her money?
$420
Mona purchased the following art supplies: a storage box for $16.98, a set of art markers for $31.78, and a pad of paper for $6.50. What was the cost of the three items?
$55.26
(5)(4)
20
(3*n2) + n
Find the value of y2 + 16 - (y-5)2
2y2 - 10y + 41
John spent the following amounts of time building a workbench:
drawing the plans: 2 hours
cutting the wood: 1.5 hours
assembling the workbench: 2 hours
sanding and sealing: 3.5 hours
What is the ratio of time spent cutting wood to total time spent on the project?
a. 1:9
b. 1:6
c. 1:5
d. 3:7
b. 1:6
5.3 x .05
.265
12 / (-4)
-3
the square of the sum of a number and 6
(n+6)2
-3(x+3) - 2(x+4)
-5x - 17
The price of a carton of computer paper decreased from $25 to $20. What as the percent decrease in the price?
a. 80%
b. 50%
c. 20%
d. 5%
c. 20%
Armando drove 278.7 miles over a 3-day period. On average, how many miles did he drive each day?
92.9
(-10)(1)
-10
The sum of 3 times a number and 4 times a second number is divided by the sum of 2 and a third number. Which of the following expressions represents this series of operations?
a. (3x + 4y) / (2+z)
b. 3x + 4y / (2+z)
c. 3x + 4y / 2 + z
d. (3x+4y) / 2z
a. (3x + 4y) / (2+z)
16x + 6(x-2)
22x - 12
Nevas car is now worth $12,000. This is 60 percent of what she paid for it. How much did she pay for the car?
$20,000
15.5 x 2.2 =
34.1