SCALE IT UP
On a map, 1 cm = 5 km.
Two cities are 8 cm apart.
How far apart are they in real life?
WHAT IS 40KM
The temperature was –7°C and increased by 12°C.
What is the new temperature?
WHAT IS 5°C
Points: (1, 6), (2, 12), (3, 18). Is this a proportional relationship?
WHAT IS YES
A video game costs $50 and is on sale for 10% off.
How much is the discount?
WHAT IS $5
What is a ratio?
A comparison of two quantities
A blueprint uses 1 inch = 4 feet.
A wall measures 9 inches on the drawing.
What is the real length of the wall?
WHAT IS 36 FT
A diver is at –25 m below sea level and rises 18 m.
Where is the diver now?
WHAT IS –7 meters?
A graph goes through (0,0) and (5, 25).
What is the constant of proportionality?
WHAT IS 5
A recipe uses 6 cups of flour for 12 cookies.
How many cups are needed for 18 cookies?
WHAT IS 9 CUPS
Is 1 a prime, composite, or neither?
WHAT IS NEITHER
A triangle on a drawing has sides 2 cm, 3 cm, and 5 cm.
The scale is 1 cm = 3 m.
What is the real perimeter?
WHAT IS 30METERS
A bank account changes by –$15.75 and then +$42.25.
What is the total change?
WHAT IS +$26.50?
The equation y = 9x describes a situation. What does the number 9 mean?
WHAT IS The unit rate / constant of proportionality
A babysitter earns $14 per hour and works 8 hours.
How much does the babysitter earn?
WHAT IS $112
What do you call a triangle with all sides equal?
WHAT IS Equilateral triangle
A square playground is 6 cm by 6 cm on a map.
Scale: 1 cm = 10 m.
What is the real area of the playground?
WHAT IS 3,600 METER SQUARED
A submarine is 18 feet below sea level. It rises 7.5 feet and then descends 4 feet.
What is the submarine’s final position relative to sea level?
WHAT IS −14.5 feet
A recipe uses 4 cups of flour for every 10 cookies.
What is the unit rate in cups of flour per cookie?
WHAT IS 0.4 cups per cookie (or 2/5 cup per cookie).
A score increases from 64 to 80.
What is the percent increase?
WHAT IS 25%
If 3 notebooks cost $6, how much does 1 notebook cost?
WHAT IS $2
A scale drawing of a playground uses the scale 1 inch = 8 feet.
On the drawing, the basketball court is 3.5 inches long.
What is the actual length of the basketball court?
WHAT IS 28FT
A bank account starts with a balance of −$45.
A deposit of $62.50 is made, followed by a withdrawal of $27.75.
What is the final balance?
WHAT IS −$10.25
A runner jogs at a constant rate and covers 7.5 miles in 1.5 hours.
Write an equation that represents the relationship between miles (m) and hours (h).
WHAT IS m = 5h
The regular price of a dress is $80. The price has been increased by 23%.
What is the amount of the markup?
A. $18.40
B. $57.00
C. $23.00
D. $61.60
WHAT IS A. $18.40
If x = 4, what is the value of 2x + 3?
11