Unit Rate
Unit Rate #2
Simplify expressions
proportional relationship
Scale factor
100
10 players for 5 coaches. How many players per coach?
What is 2
100
25 words in 5 minutes. How many words in 1 minute?
what is 5
100
x2+3x-4-3x2-3x
-2x2-4
100
is this proportional? Why?
what is not proportional, the line is not straight
100
How long is side d?
What is 12
200
Mr. Jones' truck can go 565.5 miles on 15 gallons of gas. How many miles can it go on 1 gallon?
what is 37.7
200
A human being blinks there eyes 28,800 times a day. How many times do we blink in 1 hour?
what is 1,200 times
200
3(x2-4)+6x
3x2+6x-12
200
What are the two factors when determining proportional relationship?
what is, does it cross coordinates (0,0), and is it in a straight line.
200
A scaled object is 5 in. long. What is the actual length if the scale is 1 inch to 12.5 feet?
what is 62.5 feet
300
A bakery sells donuts for $18.95 per dozen, what is the cost per donut?
what is $1.58 per donut
300
A hummingbird can flap it's wing 738 times in 6 minutes. How many times does it flap it's wings in 20 minute?
what is 2,460 times
300
4(2x-3)-5x+6
3x-6
300
what is, not proportional
300
A park is 210 by 120 feet. What are the dimensions of a drawing that shows 10 feet as 6 inches?
What is 26 inches by 72 inches
400
Mr. Underwood flew his family to Disney World. The flight took 3.5 hours. The plane flew a total of 1,242.5 miles. What was the planes miles per hour?
What is 355 miles per hour
400
If you buy 14 pizzas for $105.70. What is the price per pizza?
what is $7.55 per pizza
400
x2-4(-3x+4x)-4
x2-4x-4
400
Is this chart proportional
What is no. 1/13 ratio, until 12
400
Calculate the scale factor of the objects
What is scale factor of 3.
500
If a dozen eggs cost $5.99, what is the cost to purchase 34 eggs?
what is 16.97
500
If you wanted to buy softballs for practice, a 4 pack of softballs cost $16.87, a 16 pack of softballs cost $75.98. what is the better price per ball?
What is the 4 pack, $4.22 per ball,
the 16 pack is $4.74 per ball.
500
4(4x2-5x)-6(3x-5)
16x2-38x+30
500
write a proportional equation for the following:
a donut cost $2.79, write an equation with "c" representing cost, and "d" representing donuts to figure out what the cost would be for any number of donuts.
c=2.79d
500
What is the best approximation to the actual height of the Washington Monument?
What is 170 meters