Constant of Proportionality
How do you find constant of proportionality, K?
K = Y/X
What is 50% of 200?
100
Combine these like terms for a simplified expression.
18m - 9v + 6v - 7m
11m - 3v
What degree does supplementary angles combine to equal?
180 degrees
What is the formula to find the area of a circle?
A=pi *r^2
If Kenny can type 120 words in 3 minutes, what number would represent his constant rate of typing, k?
40 words per minute
What is 40% of 36?
75
Solve this equation:
-5x = 75
x = -15
What angle is supplementary to 134.2 degree angle?
45.8 degrees
Find the circumference of a circle with a radius of 7 cm.
43.96 cm
If Kenny can type 120 words in 3 minutes, how many words would he type in 18 minutes?
720 words
18% of 250 students said that mystery is their favorite type of book. How many students repsonded that they like mystery books?
45 students
Solve this equation:
-5x + 9 = 24
x = -3
What angle is vertical to angle 4?
Angle 1
Find the area of a circle with a radius of 3.5 m
38.465 m2
X: 8, 12, 16, 20, 24
Y: 2, 3, 4, 5, 6
What is the constant of proportionality, k, from the table above?
The meal costs $35 and the customer left a 20% tip. How much was the tip?
$7 tip
Create an equation to solve this real-world scenario:
Journee went to the movies and spend $16 for the first movie ticket and then $11 per each ticket after that. If Journee spent $71, how many tickets did she buy?
11x + 16 = 71
What degree is complementary to a 26 degree angle and a 31 degree angle?
Find the area of a circle with a diameter of 10 cm
78.5 cm2
There are 108 feet in 36 yards. What is the constant of proportionality that relates, y, the number of yards to x, the number of feet?
The Burgin family spends $600 per month on groceries for their family. If this IS 15% of their montly budget, then what is their monthly budget?
$4,000
Create an equation and solve this real world scenario:
Mrs. Burgin joined the local gym to work on her b-ball skills. The gym charges a $20 annual fee, plus an additional $15 per month for the use of the basketball courts. If Mrs. Burgin prepays $185, how many months did she pay for?
15x + 20 = 185
x = 11 months
16 degrees
If the circumference of a circle is 31.4 cm, what is the diameter?
Include the units in your final answer.
The diameter is 10 cm.