Answer:
230 * (30/100) = 23 * 3 = 69
Step-by-step explanation:
This one can be learned by heart: "what is 30% of 230" means "calculate 30/100 times 230".
First, use division to determine the unit rate of one cookie (sorry if terminology is wrong, but i do know how to do it).
Little town = 9/$8 = $1.125 per cookie
College town = 30/$13 ≈ $2.3076 per cookie
Now we are sure of how much each costs and can determine how much she would have spent at each place.
Little town= $1.125*10= $11.25
College town= $2.3076*10≈ $23.08
Now, subtract little town from college town to figure out the savings.
23.08-11.25= $11.83
Thus, she saved $11.83.
Answer:
Step-by-step explanation:
The inverse is found by interchanging the x and y values and solve the result for y.
I will use y for f(x)
y = 4x^2
Inverse
x = 4y^2 Divide by 4
x/4 = 4y^2 /4
x/4 = y^2 Take the square root of both sides.
sqrt(x/4) = sqrt(y^2)
y = sqrt(x/4)
g(x) = sqrt(x/4) If you have a very fussy teacher, the inverse function could be written as
g(x) = +/- sqrt(x)/2
I expect that if the question is computer marked, I would try g(x) = sqrt(x)/2 first.
The answer would be C because you wouldn't know the angles yet.
If he starts with one piece and ends up with 5 pieces, then he makes 4 cuts.
It takes him 8 minutes to do the actual cutting, although he may take breaks
between cuts.
