Simple Interest Solving for Variables

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

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

• Important
• Interest
• Internet
• Igloo

principle = $350.

Interest rate = 5%

TIme = 3 years.

How much interest?

• $7.50

• $26.25

• $87.5

• $52.50

Calculate the interest. I = PRT,

Principal = $1000,

Rate = 6%,

Time = 2 years

• $100

• $120

• $180

• 1200

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

• 1400
• 1000
• 14000
• 14

Jerry borrowed $4,000 for 5 years at 6% simple interest rate. How much interest is that?

• $800
• $1,000
• $1,200
• $1,500

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

• the amount of money

• the percent interest for his year

• the rate

• the percent proportion

Alexton the Skeleton borrowed $4,000 for 5 years at 6% simple interest rate to pay for his band equipment. How much interest is that?

• $800

• $1,000

• $1,200

• $1,500

Pennywise puts $300 in a bank account earning 4% interest. How much will he earn in interest in 1 year?

• 4

• 8

• 12

• 16

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

• Principal
• Interest
• rate
• time