Midterm percent notes

Percentages

Midterm notes/guide

Please write this information from these slides in your notes

The midterm date will be shared when we receive it.

Poll

I will write these in my notes as requested.

• Yes

• No

Percentage topics

• General Percent formulas

• Simple Interest

• Percent Change

Where to study from

• Past Percent Quizzes

• Quizizz.com Simple Interest

• Quizizz.com Percent Change

• NOTES / NOTES / NOTES !!!

• This document

General form

Finding IS

What is 20% of 30?

What is 20% of 30?

Finding OF

12 is 25% of what?

12 is 25% of what?

Finding Percent

What % is 15 out of 22?

What % is 15 out of 22?

Open Ended

Write the following:

1. 1. Acknowledge that you copied the information into your notes.

3. 2. Describe in your own words hot to determine is/of/% for standard percentage programs

Simple Interest

I=Prt        where:

I is Interest
P is Principal (amount deposited or borrowed)
r is the rate in decimal form (%/100)
t is the time in years

Simple Interest (Savings)

• What is the interest on a $1500 deposit invested in a savings account at 2.5% interest for 3 years?

What is the interest on a $1500 deposit invested in a savings account at 2.5% interest for 3 years?

Simple Interest (loans)

• What is the interest on borrowing 12500 at 7.5% interest for 4 years?

What is the interest on borrowing 12500 at 7.5% interest for 4 years?

Fill in the Blank

What is the interest on borrowing 27500 at 7.5% interest for 5 years?

DO NOT use commas or dollar signs

.

Percent change

Percent Change

If the original price of a shirt was $65 and it now costs $35, what is the percentage change?

If the original price of a shirt was $65 and it now costs $35, what is the percentage change?

Percent Change

Yesterday there were 28 cars in the lot, today there are 45, what is the percentage change?

Yesterday there were 28 cars in the lot, today there are 45, what is the percentage change?

Fill in the Blank

Yesterday 415 students bought school lunches. Today they bought 435 lunches. What is the percent change rounded to the 100ths?

Be sure to write increase OR decrease

.

%

Fill in the Blank

Monday the park emptied 35 trash bins. On Friday they emptied 30. What is the percent change rounded to the 100ths?

Be sure to write increase OR decrease

.

%

Open Ended

I have the following questions about percentages...

Be sure to number them and explain as clearly as you can.