A large company is considering changing all the light bulbs in their office buildings to new, more efficient bulbs. The accountant said the return on the investment is equal to the annual energy savings divided by the net installation cost. They received two bids. For the first bid, the annual cnergy savings is modelled by 14x and the net installation cost by 3x-1 where x represents the number of light bulbs in the hundreds. The company estimates that 2500 bulbs would need to be replaced. For the second bid the savings was modelled by 10x and thec cost by 2r +1 for the same representation of x and for at least 2500 bulbs. a) Write an expression to model the return on investment for the first bid. b) Write an expression to model the return on investment for the second bid. ) At what number of bulbs would the return on investment be the same for both bids? ) Which bid is the better bid to take? Explain why.

FINANCIAL ACCOUNTING
10th Edition
ISBN:9781259964947
Author:Libby
Publisher:Libby
Chapter1: Financial Statements And Business Decisions
Section: Chapter Questions
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* A large company is considering changing all the light bulbs in their office buildings to new, more efficient
bulbs. The accountant said the return on the investment is equal to the annual cnergy savings divided by the
net installation cost. They recceived two bids. For the first bid, the annual cnergy savings is modelled by 14x
and the net installation cost by 3x-1 where x represents the number of light bulbs in the hundreds. The
company estimates that 2500 bulbs would need to be replaced. For the second bid the savings was modelled
by 10x and thc cost by 2r + 1 for the same representation of x and for at least 2500 bulbs.
a) Write an expression to model the return on investment for the first bid.
b) Write an expression to model the return on investment for the second bid.
c) At what number of bulbs would the return on investment be the same for both bids?
d) Which bid is the better bid to take? Explain why.
Transcribed Image Text:* A large company is considering changing all the light bulbs in their office buildings to new, more efficient bulbs. The accountant said the return on the investment is equal to the annual cnergy savings divided by the net installation cost. They recceived two bids. For the first bid, the annual cnergy savings is modelled by 14x and the net installation cost by 3x-1 where x represents the number of light bulbs in the hundreds. The company estimates that 2500 bulbs would need to be replaced. For the second bid the savings was modelled by 10x and thc cost by 2r + 1 for the same representation of x and for at least 2500 bulbs. a) Write an expression to model the return on investment for the first bid. b) Write an expression to model the return on investment for the second bid. c) At what number of bulbs would the return on investment be the same for both bids? d) Which bid is the better bid to take? Explain why.
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