Scale Drawings & Proportional Relationships
C.O.P. stands for what?
Constant of Proportionality
Complementary angles add up to what degree?
90 degrees
-4 (-3)
12
Combine Like Terms
5x + 4 - 2x + 6
3x + 10
Sean's mother has three children: Snap, Crackle, and _____ ?
Sean
A scale factor of 1/2 does what to the side lengths of a figure?
Makes Side Lengths Smaller
A circle has a radius of 12 feet. What is the diameter of this circle?
24 feet
What is 15% of 18
2.7
Distribute
3(x - 4)
3x - 12
What number is odd, until you take away one letter and it becomes even?
Seven
A graph of a proportional relationship always starts where?
The origin
What is the supplement of an angle with a measure of 100 degrees?
80 degrees
3 + - 7
-4
Solve
3x - 2 > 31
x > 11
What is orange, has a green top, and sounds like a parrot?
A carrot.
Write an equation for a proportional relationship that has a C.O.P. of 3
y = 3x
What is the area of a circle with a radius of 4 cm?
50.27 cm2
A hat that costs $20 is on sale for 12% off. What is the new cost of the hat?
$17.60
Solve
4(x+2) = 20
x = 3
I sometimes run, but cannot walk. You follow me around. What am I?
Your nose.
x y
5 35
8 56
10 70
What is the C.O.P. in the table above?
Bonus: Write an equation for this relationship
The C.O.P. is 7
Bonus: y = 7x
True or False: There exists a proportional relationship between a circle's diameter and its circumference.
True (Pi is the C.O.P)
A meal at a restaurant costs $84. There is a 7% tax applied to meals. After the tax is applied, Carl wants to leave a 15% tip. What is the total cost of the bill?
$103.32
Solve
-4x + 2(x+5) < 26
x > -8
What runs but cannot walk, has mouth but no teeth, and has a bed but cannot sleep?
A river