Rational Number Operations
An airplane descended 4,000 feet before landing. The integer that represents how many feet the airplane was above the ground before its descents is?
What is 4,000
A package of 5 pairs of insulated gloves costs $29.45. What is the cost of a single pair of gloves?
What is $5.89
Find 162.5% of 200
325
The cost to rent a scooter is $15.50 per hour and the cost to rent a water craft is $22.80 per hour. Use the expression 15.5s + 22.8w to determine the how much it would cost to rent a scooter for 3.5 hours and a watercraft for 1.75 hours.
$94.15
Find 0.3% of 60
0.18
The decimal equivalent for the fraction 2/3
What is 0.66666 repeating
Find the unit rate 3/4 page in 2 minutes
3/8
What percent is 17 out of 40?
42.5%
Solve if f =12 and g=2
0.5f - 2.3g
1.4
Find the product of:
-5.3xx(-2.6)
13.78
The sum of -66+42 is?
What is -24
Is this relationship proportional?
x 4 5 6 10
y 64 125 216 1000
No
A restaurant automatically charges 20% tip for every bill. How much tip will be added to a bill that is $141?
$28.20
Use the associative property to write an expression equivalent to (w+9)+3
w+(9+3) or w+12
The relationship between x and y is proportional. When x is 29, y is 275.5. Find the constant of proportionality of y to x.
9.5
It was 12°C when Preston got home from school. The weather report shows a storm front moving in that will drop the temperature by 17°C. What is the expected temperature?
What is -5°C
The height of a stack of DVD cases is proportional to the number of cases in the stack. The height of 6 DVD cases is 114mm.
Write an equation of proportionality that relates the height, y, of a stack of DVD cases and the number of cases, x, in the stack.
y = 19x
Rihanna has a container with a column of 1.5 liters. She estimates the volume to be 2.1 liters. What is the percent error?
40%
Simplify this expression:
3.2-5.1n-3n+5
-8.1n+8.2
A school orchestra has 60 members, 20% of the members are percussionists. How many members are percussionists?
12
The product of -3/5 xx 4 1/6
-5/2
A recipe calls for 15 ounces of flour for every 8 ounces of milk. The relationship is proportional. If you use 15 ounces of milk how much flour do you need?
28 1/8 ounces
Find the percent markdown for an $80 jacket that is on sale for $48
40%
Expand this expression
6(x+y)
6x+6y
Find the sales price:
$5000 item with a 44% markdown
$2800