Interest

Sarka has $2500 to invest. She can invest the money in an account paying 2.5% simple interest each year, or in an account paying 2.25% compound interest each year.

Sarka will invest her money for 5 years. She will not pay any more money into the account.

Calculate how much more money Sarka will earn if she invests her money in the account that pays simple interest.

• 18.31

• -18.31

• 19

• 20

Maria deposits $320 in a savings account that pays 3.2% simple interest per year. Find the savings Maria will have after six years.

• 381.44

• 10.24

• 386.57

• 66.57

Maria deposits $320 in a savings account that pays 3.2% simple interest per year. Find the interest Maria will have after six years.

• 381.44

• 10.24

• 66.57

• 386.57

George buys a used car for $3200, and fixes it. He decides to sell it for $3650.

What is the percentage profit that he will make (to the nearest whole number)?

• 14

• 86

• 14.1

• 85.9

If you deposit $4000 into an account paying 6% annual interest compounded quarterly, how much money will be in the account after 5 years?

• 5387.42

• 1387.42

• 1200

• 5200

If you deposit $4000 into an account paying 6% annual interest compounded quarterly, how much interest will be in the account after 5 years?

• 5387.42

• 1387.42

• 5200

• 1200

If you deposit $6500 into an account paying 8% annual interest compounded monthly, how much money will be in the account after 7 years

• 11358.24

• 4858.24

• 3640

• 10140

y is directly proportional to the square root of x. When x = 4 y = 8. Find the value of y when x = 25

• 20

• 4

• 5

• 2

The weight of a piece of wire is directly proportional to its length. A piece of wire is 25 cm long and has a weight of 6 grams.

Another piece of the same wire is 30 cm long. Calculate the weight of the 30 cm piece of wire.

• 36/5

• 25/5

• 125/5

• 125

p is inversely proportional to m.

p = 48 when m = 9

Calculate the value of m when m = 36

• 12

• 36

• 720

• 432