Percent Increase/Decrease
Finding Percentage
Percent tip
Direct Proportion Graphs
Direct proportion Tables/Equations
100
Jeff had $2,000 in the bank with an interest rate of 2.5% each year. How much money will be in his account after one year?
$2,050
100
There are 26 warriors in the Riverclan. If there 50 members in the Riverclan, what percentage of the Riverclan are warriors?
52%
100
Sergio bought a TV for $450. There is a 7% tax rate where he lives, meaning the price will be increased by 7%. How much in total will he pay for the belt after tax?
$481.50
100
Yes!
100
State whether either of these tables are directly proportional.
Yes, the daily post represents a direct proportion. The evening star does NOT!
200
Wally has a 30% off coupon for a shoe store. The shoes he buys are $196 regularly. How much will the shoes cost after the discount?
$137.20
200
Joe bought $20 worth of food and paid $1.80 in tax. What is the tax rate?
9%
200
Bob left a 20% tip on a meal that was $32. How much will the total meal cost with the tip?
$38.40
200
The constant of proportionality here
What is 50 mph?
200
State whether this table represents a direct proportion. If so, write an equation. If not, state why not.
Yes,
y=7x or y/x = 7
300
A boat dealer sold a boat for $18,250. If their commission rate is 4%, how much money did they make?
$730
300
Tyler bought a car for $15,000. The sales person's commission was $450. What percentage of the sale price is their commission?
3%
300
Billy went to a restaurant and spent $94. He decides to leave a 30% tip. What is his total after the tip?
$122.20
300
Write a direct proportion equation that would match this graph.
What is
y=50t or y/t=50
300
The number of crates is directly proportional to the number of peaches to package. Fill in the missing values of the table.
C = 25
P = 2,240
400
Georgia went to the grocery store and spent $88. She had a coupon for 26% off. How much will the food cost after the discount?
$65.12
400
The bill for a meal is $40 and the customer left $47.50. What percentage of the bill was the tip?
18.75%
400
Karen's total bill was $40. The states tax rate is 6.8%. How much will the bill be after tax?
$42.72
400
What is 275 miles?
400
State whether this represents a direct proportion, and if so write an equation that matches this table. If not, state why not.
Yes,
y=1.52x or y/x=1.52
500
Alan earns $14 per hour. His company offers him a raise- a 7.5% increase per hour. After the raise, how much will Alan make per hour?
$15.05
500
It rained 15 inches in November and 57 inches in December. By what percentage did the rain increase from November?
280%
500
Brianna went to dinner and the subtotal was $30. The public holiday surcharge rate is 5%. She wants to leave a 20% tip on the subtotal as well. What will the total cost be after tax and tip?
$37.50 ($6 for tip, $1.50 for tax)
500
How long it would take Ms. Garcia to travel 700 miles.
What is 14 hours?
500
b is directly proportional to a, and a = 14 when b = 42. Find b when a is 7.
B = 21