9% of $30 is $2.70. 9% of $25 is $2.25. Therefore, Mira pays $32.70 and Gus pays $27.25. 32.70-27.25=5.45. The difference in the amount of that Mira and Gus paid is $5.45.
Answer:
f(x) =
Step-by-step explanation:
Note that
= 1
= 3
3² = 9
3³ = 27
Thus
f(x) =
Answer:114
Sorry
Step-by-step explanation:
Answer:
Minimum Unit Cost = $14,362
Step-by-step explanation:
The standard form of a quadratic is given by:
ax^2 + bx + c
So for our function, we can say,
a = 0.6
b = -108
c = 19,222
We can find the vertex (x-coordinate where minimum value occurs) by the formula -b/2a
So,
-(-108)/2(0.6) = 108/1.2 = 90
Plugging this value into original function would give us the minimum (unit cost):
Answer:
1/2
Step-by-step explanation:
it's positive so its absolute value is the same just like a positive whole number
note: the absolute value of a negative fraction is tricky, but that's not important here