Integers and Fraction Operations
Evaluate each expression
a. -15 + 30
b. 75 - (-15)
c. (-8)(9)
d. 72 ÷ (-12)
a. -15
b. 90
c. -72
d. -6
Rewrite 1/4 as a decimal and a percent.
0.25
25%
Express the ratio "12 out of 20 dentists" in simplest form.
3/5 or 3:5
Use the distributive property to rewrite the the expressions.
A. (d - 14)(-2)
B. (0.5)(6x + 10)
A. -2d - (-28)
B. 3x + 10
What is the total cost, including sales tax, for a $400 tablet with 7% sales tax?
$428
Evaluate each expression.
a. -7 + (-20)
b. -4 - 4
c. (2)(-23)
d. -66 ÷ -11
a. -27
b. -8
c. -46
d. 6
Rewrite 65% as a fraction in simplest form and a decimal.
65/100 = 13/20
0.65
A pack of 6 bottles of iced tea costs $3.78. What is the unit price of single bottle?
$0.63 per bottle
Solve the equation.
3 = 7 + 6j - 8j
3 = 7 -2j
-4 = -2j
2 = j
What is the sale price for a $90 winter coat after a 60% discount?
$36
Add or Subtract
a. 3/4 + 1/8
b. 15/40 - 6/20
a. 7/8
b. 3/40
Rewrite 0.9 as a fraction in simplest form and a percent.
9/10
90%
Solve the proportion.
a. 48/8 = 66/m
b. 54 is 90% of what number?
a. m=11
b. 54/x = 90/100 x=60
Solve the inequality.
6w - 7 > 17
w > 4
When shopping for jewelry for his wife for Valentine's Day, a man has two coupons one for $20 off and one for 20% off, but he is only allowed to use one. He is looking at a pair of earrings that are $159 dollars. Which coupon should he use?
$20 off coupon saves him $20
20% off coupons saves him $31.80
He should use the 20% coupon for these earrings.
Add or Subtract
a. (10_6/7) - (3_4/7)
b. (2_2/3) + (9_2/3)
a. 7_2/7
b. 12_1/3
Select all of the choices that are equivalent to 0.4.
a. 4/10
b. 2/5
c. 40%
d. 0.4%
e. 0.04
a. 4/10
b. 2/5
c. 40%
A camel can travel 60 miles in 3 days. At this rate, how many days will it take the camel to walk 220 miles?
60 mi/3 days = 220 mi/ ? days
11 days
Solve the equation.
-4(2x + 5) = 28
-8x + (-20) = 28
-8x = 48
x = -6
A music store lists a guitar for sale with a price of $180. Later they decrease the price by a 30% discount. What is the final discounted price of the guitar?
$126
Multiply or Divide
a. (1/11) ÷ (1/5)
b. (2/3) x (-4/5)
a. 5/11
b. -8/15
Select ALL of the choices that are equivalent to 4_1/8.
a. 4.125
b. 4.18
c. 0.418
d. 41.8%
e. 412.5%
a. 4.125
e. 412.5%
A baker buys 12 bags or flour for $168. Later she realizes that she needs 5 more bags. How much will she pay for the five extra bags?
$168 / 12 bags = $ ? / 5 bags
$70 for the extra five bags
Solve and graph the inequality.
-3n - 21 > 6
n < -9
Mark needs a new refrigerator for his home. The original price was $1200, but it is on a president's day sale with a markdown of 30% off the original price. He must pay a 5% sales tax on the sale price. Including tax what is the final cost of the fridge?
$882