10% of 300
30
What is a 5% increase of 200?
HINT: Original Value + Markup = New Value
210
The original value is 250. The new value is 200.
What is the percent decrease?
HINT: Take the difference, divide by original, multiply by 100
20% Decrease
15a + 5a + 6b - 2b
20a +4b
110% of 45
49.5
What is a 10% decrease from 95
HINT: Original Value - Markdown = New Value
85.5
Aaron has saved $500 in a high yield savings account. There is a 15% annual interest rate. If he saves his money for 4 years, how much interest will accumulate?
I = PRT
$300
Simplify the Expression:
-10g + 5a - 6a
-10g - 1a
or
-10g + -1a
2/3 of 78
52
The dinner at the restaurant was $52. You left the waiter a 13% tip. How much was your total bill?
$58.76
Elena's monthly salary is $2500. When the tax is deducted, Elena receives $2100. What is the percent decrease in her salary?
HINT: Take the difference, divide by original, multiply by 100
16% decrease
Round $115 to the nearest dollar.
$115
3.56% of 63.5
2.2606
21.25
TJ bought a controller that was originally priced at $45. He only paid $15.75 for the controller. What was the percent discount?
65% discount
(in other words...a 65% decrease)
Round 105.68 to the nearest tenths.
105.7
0.003% of 89
0.00267
Sephora is offering a discount on all makeup brands. Freda chose two items to buy that day from Sephora.
- the Charlotte Tilbury setting spray, which has a discount of 10% off with an original price of $29.
- The Kayali perfume, which has a discount of 50% off with an original price of $150.
How much did she spend that day on the two items?
$101.10
A ticket to New York costed $120, but the ticket price changed. The new price can be represented by the expression
120×0.80.
What is the percent change?
20% decrease
Describe how you'd recognize if the problem is a
- Simple Interest Problem
- Percent Change Problem
- Markup/Markdown
What would you look for?
Simple Interest: look for the word "interest" and then use I=PRT
Percent Change: Look to see if the problem is asking you to find percent. What is the ..."Percent Increase", "percent discount", "percent change"....
Markup, if there is a increase from the original value
Markdown, if there is something causing a decrease from the original value.