Cost Over Time Lamp
Ramón needs a new lamp. He has
narrowed down his choices to the ones
shown.
A
B
С
D
Initial Price
($)
50
70
80
85
Energy Cost per Year
($)
12
15
9
12
Part A
Ramón really likes the looks of Lamp A, and the initial price is great. If the only costs associated with the
lamp are the initial purchase and the energy costs, construct a model to represent the annual cost of
using Lamp A over a number of years. Be sure to define your variables.

step-by-step explanation:

if you want to solve percent error follow these steps.

1. subtract the accepted value from the experimental value.

2. take the absolute value of step 1.

3. divide that answer by the accepted value.

4. multiply that answer by 100 and add the % symbol to express the answer as a percentage.

if you want to solve percent of change just do this.

1. work out the difference (increase) between the two numbers you are comparing.

2. divide the increase by the original number and multiply the answer by 100. if your answer is a negative number then this is a percentage decrease.

hope this : )

2 apples

step-by-step explanation:

taking away equals subtraction. 6-4=2

4

step-by-step explanation: