Answer:
$(a + b) + cn cent
Step-by-step explanation:
Given :
Fixed charge = $a
Rent of a meter = $b
Charge per unit of electricity = c cents
The total cost of using n units of electricity :
For n units of electricity ;
Fixed charge is paid once
Meter rent is paid once
The cost of electricity = (number of units * cost per unit) = (n * c) = nc cents
Total cost of n units of electricity :
$(a + b) + cn cent
Answer:
28
Step-by-step explanation:
a³+b³= (a+b)³ - 3ab(a+b)
= 4³ -3×3×4 = 64-36 = 28
Answer:
[1, 2.5]
Step-by-step explanation:
A rate of change on x- axis is defined as positive if the function increases as x does, and defined negative if y decreases as x increases.
Thus, we only need to see in which of those intervals [–2, –1] , [–1.5, 0], [0, 1]. [1, 2.5] the graph of the function goes only down if we look it from left to right.
The only one interval satisfying this condition is [1, 2.5].
Answer:
12 for 9$
Step-by-step explanation:
Because you get more cans.
There should be 8 grapes left in the bowl
