f(x) Composite Functions
Given f(x)=x+2, find f(3)
5
A grocery store has a sale for 6 bags of chips at a price of $5.55. At this discounted rate, how much would the store charge for 4 bags of chips?
$3.70
X-5=12
X=17
If a and b are negative numbers, what must be true of ab?
ab is positive.
1
You go to your favorite clothing store and purchase 10 articles of clothing for $690. Tops are $45 each and jeans are $125 each. Please determine how many tops and jeans you purchased.
T=7
J=3
-2+X=2X-5
3=X
The sum of two consecutive odd integers is m. What is the sum of the next two consecutive integers greater than m?
2m+3
Given f(x)= |x-4|, find f(3)
1
Two families go to see the latest Disney movie. The ticket price for adults is $15/adult and for children it's $90/kid. For ten people, the cost was $114. How many adults and kids went to the movie?
C=6
A=4
|-5|+X=10
X=5
Tai is 15 years older than Dmitri. In twelve years, Tai will be twice as old as Dmitri. How old is Tai now?
18
Given f(x)= |x-4| and g(x)=3-2x, find f(g(x))
1-2x-11
You buy six tomato plants for your garden. Determinate plants are $5/plant and indeterminate plants are $7/plant. If you spend a total of $40, then how many indeterminate plants did you buy?
I=5
(1/3)x=80
x=240
Li is four years older than Mike and two years younger than Russel. If Mike is m-years-old, how old is Russel, in terms of m?
m+6
Given f(x)= |x| and g(x)=3x^3, find g(f(-4))
192
In Chemistry class, you're trying to mix a 50mL solution of 3% HCI. You have a 5% HCI solution and a 1% HCI solution. How many mL of the 5% solution will you need to make this mixture?
25mL
6x+3(x+2)=69
x=7
The price of an umbrella is reduced by half. If the new price is then reduced by 1/10, the resulting price is what fractional part of the original price?