Question

A company wants to purchase two types of lightbulbs, CFL (compact fluorescent) and LED (light emitting diode).The cost of each CFL bulb is $2, and the cost of each LED bulb is $20.The company must purchase a total of 800 lightbulbs, must spend at most $5,000 on the lightbulbs, and wants topurchase as many LED bulbs as possible.Let L represent the number of LED lightbulbs purchased, and C represent the number of CFL lightbulbs purchased.Which of the following systems models the situation described?A2C+20L 800C+L5,00020C+2L=800B C+L≤5,000D20C+2L5,000C+L=8002C+20L5,000C+L=800

Answer 1

Let L represent the number of LED lightbulbs purchased

Let C represent the number of CFL lightbulbs purchased

The cost for L = $20

The cost for C = $2

Total lightbulbs = 800

Spend for the company: at most $5000, this is ≤ $5000

Given the situation, the following equations can be obtained:

$\begin{gathered} 2C+20L\leq5000 \\ and \\ C+L=800 \end{gathered}$

Answer: D.