QUIZ 8 (5.4 & % CHANGE)

What does the "I" in the interest formula stand for?

• Principal

• Interest

• Rate

• Time

Maria borrowed $3,000 at a simple interest rate of 4% per year.  How much did she have to repay after 4 years?

• $480

• $3,480

• $4,800

• $7,800

What does the "r" in the interest formula stand for?

• Principal

• Interest

• rate

• time

Tags

CCSS.7.RP.A.3

The rate is given as a percent (%).  Before using it in the simple interest formula, you must first convert it to a______.

• fraction

• decimal

• ratio

• dollar amount

The simple interest formula is I=Prt.  The P represents the principle.  The principle is ___________________.  

• the amount of money borrowed or deposited

• the percent interest for his year

• the amount taxed

• the amount the bank owes you for being a customer at their bank

Tags

CCSS.7.RP.A.3

Write the percent as a decimal. 
4.3%

• 4.3

• .43

• .043

• 4300

Starting money = $350.
Interest rate = 2.5%
TIme = 3 years.
How much interest?

• $7.50

• $26.25

• $87.5

• $262.50

Tags

CCSS.7.RP.A.3

Calculate the interest. I = PRT,

Principal = $1000,

Rate = 6%,

Time = 2 years

• $100

• $120

• $180

• 1200

Tags

CCSS.7.RP.A.3

Calculate the interest.  I = PRT,
Principal = $10000,
Rate = 7%,
Time = 20 years

• 1400

• 1000

• 14000

• 14

Beyonce went to the mall and saw a massage chair that she would have to take a loan out for $6500 to purchase.  The bank said that she could get a simple interest rate of 8% for 5 years.  What is the total amount that Beyonce will pay for the chair?

• $2600

• $910

• $9100

• $260

Tags

CCSS.HSF.BF.A.2