Linear Equation
A caravan park charges $30 immediately as a deposit to book a site and a further $15 per night to stay at the park.
Cost = 30 +15n
How much simple interest does a $318 investment earn at 9% over one year?
$28.62
Nelly borrows $1300 at 7.3% interest p.a. compounding annually. Calculate the amount total amount she repays if she pays it off after 2 years.
$1496.73
x^2 + 10x + 16
(x+8)(x+2)
(x+2) (x+5)
x^2 + 7x + 10
A service technician charges $50 up front and $25 per hour each hour he works. What will a 4 hour job cost?
Cost = 50 + 25h
Cost = 50 + 25 x 4
Cost = $150
If you borrow $675 for six years at a simple interest rate of 10%, how much will you pay in total?
$1080
Dusty borrows $50,000 for a new landcruiser. If Toyota is charging 8% interest compounding annually on a 6 year loan, how much will be payed back by the end of the loan?
$79343.72
(x+1)(x+6)
(x-9) (x-5)
x^2 -14x + 45
A service technician charges $50 up front and $25 per hour. How many hours did he work if he earned $525.
525 = 50 + 25x
19 = x
If you borrow $500 for five years at a simple interest rate of 4.8%, how much will you pay in total?
$620
Phoenix borrows $350,000 to mortgage his first home. The bank offers a loan of 7% compounding monthly for 30 years. What amount will have been paid back by the end of the loan?
$2,840,774.116
This is assuming no repayments are made
x^2+ x - 6
(x+3) (x-2)
(x+4)^2
x^2 + 8x + 16
On Sunday morning rain fell at a rate of 2mm per half hour into the rain gage. The rain gage started with 6mm from the night before. The relationship between mm of rainfall (R) and time in hours (t) is
t = 2R + 6
R = 6 - 2t
R = 4/2T + 12/2
R = 4t + 6
R = 4t + 6
Hildra is given 2 options for an investment. Determine the best and explain why:
Simple = $7200 over 10 years
Compound = $8083.05 over 10 years
Because we are investing Compound option is better as we want more money
x^2 + 9x - 22
(x + 11) (x - 2)
(x - 5)^2
x^2 -10x + 25
Mr. T marks 1 draft every quarter of an hour then spends half an hour writing general class feedback. The equation where is number of drafts and is total hours drafting is:
H = 4d +30
H = 1/2d + 1/4
H = 1/4d + 1/2
d = 4H
H = 4d + 30
Mr Watson wants $20,000 in 1 years time to go on an overseas holiday. He is going to invest his money in an account earning 5.55% interest compounding monthly. What does he need as an initial investment to make this happen?
$18,932
2x^2 + 22x + 36
2(x^2 + 11x + 18)
2(x+2) (x+9)
(3x + 11) (3x-11)