Circles
The diameter of a circle is 12 inches. What is the circumference?
37.68 inches
4x-8=16
x=6
410 books in 5 years = ______ books per year
82 books per year
2 angles that are complementary add to equal ______ degrees.
90
What is slope-intercept form?
y=mx+b
The diameter of a circle is 22 cm. What is the circle's area?
379.94 cm2
-3-9x=78
x=-9
917 sit ups in 7 days = _______ sit ups per day
131 sit ups per day
2 angles that are supplementary add to equal ______ degrees.
180
Identify the slope: y=1/2x-5
m=1/2
The circumference of a circle is 113.04 ft. What is the circle's diameter?
36 ft
43=2x-7
x=25
Jonah's Auto Wash had revenues of $10 from 2 customers. After serving 4 customers, how much revenue will Jonah's Auto Wash have?
Solve using unit rates. (fraction = fraction)
$20
If angle A and B are supplementary and angle A is a right angle, what is the measure angle B?
90 degrees
Identify the y-intercept: y=4x
b=0
A half circle has a radius of 9 cm. What is the half circle's area?
127.17 cm2
5(k − 959) = –245
k=910
Eva's office recycled a total of 192 kilograms of paper over 16 weeks. How many weeks will it take Eva's office to recycle a total of 468 kilograms of paper? Solve using unit rates.
39 weeks
Angles A and B are complementary. Angle A measures 37 degrees, what is the measure of angle B?
53 degrees
The cost of a school banquet is $95 plus $15 for each person attending. Write an equation that gives the total cost as a function of the number of people eating.
y=15x+95
The circumference of a circle is 131.88 inches. What is the circle's radius?
21 inches
Ronald stayed at the Lakeside Lagoon campgrounds last weekend. He paid a rental fee to use a kayak for 3 days. He also paid $16 for a guided waterfall tour. Ronald paid $70 in all.
Which is d, the cost of each day Ronald used the kayak?
d=18 or $18 per day.
As storm clouds gathered, the temperature fell 4 degrees in 3/4 of an hour. At what rate was the temperature falling?
5.33 degrees per hour
The 3 angles of a triangle add to equal 180 degrees. Angle A is a right angle, angle B measures 5x+5 and angle C measures 5x-5. What is the value of x?
x=18
A real estate agent receives a salary of $250 per week plus a commission of 2% of sales. Write an equation that gives the weekly income y in terms of sales x.
y=250+.02x