Positive vs. Negative
-65+137
72
24 x 1/9
2 2/3
how much interest does a $318 investment earn at 9% over 7.5 years?
214.65
Define principal in one word
loan
cost of a sled: $99.50
Mark up; 95%
194.02
6 x (-7)
-42
2/7 x 16
4 4/7
If you borrow $575 for eight years at an interest rate of 3.75%, how much interest will you pay?
$172.50
Explain commission.
a fee paid to a person for making a sell or product
Cost of a computer $1,850.00
Mark Up 75%
$3237.50
A cable on a fishing boat lowers a fish trap into a lake at a rate of 3 1/2 feet per second. What is the change in depth of the fish trap after 12 seconds?
-42 feet
3/8 x 11
4 1/8
If you borrowed $491 for one year at an interest rate of 3%, how much will you pay in interest?
$14.73
Difference between gratuity and taxes.
Gratuity is a tip. Taxes is a paid mandated fee applied by the state.
Original price $99.99
Discount 13%
$86.99
An elevator goes from the 124th floor to the 8th floor of a skyscrapper in 40 seconds. The elevator travels at a constant speed. What is the elevator's rate of change in floors per second?
2.9
7/8 x 9
7 7/8
If the balance at the end of eight years on an investment of $630 that has been invested at a rate of 9% is $1083.60, how much was the interest?
$453.60
Difference between dividend and divisor.
Dividend is the first number, divisor is the second number or a number by which another number is to be divided.
Original Price SUV: $42,000.00
Taxes 8.9%
$38,262.00
(-4/5) (15/8) (7/3) (-1)
3.5
11 x 6 3/10
69 3/10
How much interest is earned on a principal of $646 invested at an interest rate of 6% for half of a decade?
$193.80
Inverse operation
operation opposite. Multiplication and division. Addition and subtraction.
Cost $129.99
Taxes 1%
$131.29