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A car loses half its value Answer: 2000
every 3 years. If 6 years
after it was made it is worth At the beginning you know the car is worth x, after 3
$12,000 less than its original years its worth x/2, after 6 its worth x/4, and after 9 its
value, how many dollars worth x/8.
will be worth 9 years after it
was made? x-12000 = x/4 = 3x=48000 --> x = 16000 x 1/8 = 2000
a. 1000 (1200 less than original value)
b. 2000
c. 3000
d. 4000
e. 6000
Sherry invests money in Answer: 3960
stock. Her initial investment
is 3000 and after one
month the stock's value
increases by 20%. After
another month, her
investment's value
increases again, this time by
10% of the previous month's
value. How much is her
investment worth now?
a. 3300
b. 3840
c. 3960
d. 4000
e. 4150
, What is the distance Answer: 26
between (-6,7) and (4,31)?
The formula for the distance d between two points (x1,
a. 10 y1) and (x2,y2) is d=squareroot ((x2-x1)^2 + (y2-y1)^2)
b. 18
c. 24
d. 26
e. 37
For new car purchases, an Answer 21
automobile company
allows the selection of the You multiple 7 by 6 and not 7 by 7 because you can't
two free "extras" from a list pick the same thing twice.
of seven. How many
different ways can a car be But you have to divide 7 x 6 by 2 because picking a
customized with extras? cupholder and a basket is the same as picking a basket
and a cup holder.
a. 21
b. 28
c. 35
d. 42
e. 49
y+8 is what percent of y^3 - Answer 20
4 when y=4?
Plug 4 into the two equations.
a. 20
b. 25
c. 33 1/3
d. 300
e. 500
If x>0 what is the value of Answer 1
the expression ((abs -x) +
(abs 2x)) / (abs -3x)