Proportional Relationships Review

• No; constant is 7

• Yes; constant is 4.4

• No; constant is 4

• Yes; constant is 4

• none of the above

What is the equation

• 3x=y

• y=kx

• y=3x

• 3y=x

• None of the above

How many apples would I have if there were 15 trees?

• 196

• 195

• 182

• 185

• none of the above

What is the constant? And what is the equation?

• 12; y=x12

• 12; 12=yx

• 12; y=12x

• 12; 12y=x

• none of the above

Two things will be true about a graph that is proportional:

1) The graph will be a _________

2) The graph will pass through the __________.

• constant and straight-line

• straight-line and constant

• squiggly line and origin (0,0)

• straight-line and origin (0,0)

• none of the above

The school band plays for 20 minutes at a pep rally. They play 10 songs. If all the songs are the same length, how many songs do they play in 5 minutes?

• 2.5

• 2

• 1.5

• 3

• none of the above

Sally is going to the store to buy chocolate chip cookies for the class party. She sees a 16 oz. bag of cookies for $5.99 and a 22 oz. bag for $6.25. Then she she's another that is 24 oz. for 7.42. Which is the better deal? (Round to nearest hundreth if needed)

• They are the same

• 22 oz. bag

• 16 oz. bag

• 24 oz. bag

• none of the above

An electrician is installing light bulbs in a hotel. If she can install 47 light bulbs in 30 minutes, how many can she install after 4 hours if she keeps at a constant rate? Use a graph to find your answer.

• 240 bulbs

• 188 bulbs

• 376 bulbs

• 420 bulbs

• none of the above

If the campers at Camp Grilled Meat prefer hot dogs to hamburgers by a ratio of 4:3, and they need 500 hot dogs, how many hamburgers will they need?

• 667

• 666

• 300

• 375

• none of the above

A cookie recipe asks for 1.5 cups of sugar for each cup of flour. Which equations represents the relationship between sugar (s) and flour (f)?

• s = 1.5f

• f = 1 1/2s

• s = 1 1/2f

• f = 1.5 f

• 1 1/2 = fs