I need a little bit more detail in order to answer your question properly
Let's split these two situations up.
Linda
Linda deposits $1,800 into an account that pays 7.5% interest, compounded.
The equation:
1,800× 1.075^x=y
Let's put in 10 for x.
1.075^10= 2.06103156 × 1,800= 3,709.85681≈ 3,710
Anna
Anna deposits $4,000 into an account that pays 5% interest, compounded.
The equation:
4,000× 1.05^x=y
Let's put in 10 for x.
1.05×10= 1.62889463×4,000= 6515.57852= 6516
A) Linda's account: $3,710
Anna's account: $6,516
9514 1404 393
Answer:
- regardless of the time used your energy will cost $0.05/kWh
- your annual energy use will cost $15.08
Step-by-step explanation:
The problem statement tells you the cost of energy is $0.05/kWh. If those are the units required for the answer, that is the answer.
__
The question, "how much will that cost you?" suggests the units of the answer should be <em>dollars</em> (not dollars per kWh). In that case, we need to know the number of kWh used during the year. The total annual cost will be ...
(0.14 kW +0.15 kW)(4 h/day)(5 day/wk)(52 wk/yr)(1 yr)($0.05/kWh)
= (0.29)(4)(5)(52)($.05) = $15.08
Your cost will be $15.08 for the electricity for a year.
Use a factor tree break the number down i to its greatest common factor and break it down until it cant be divided anymore.
This question is pretty simply, first take the $15.54, and divide it by 2.12 lbs, to get 7.33 dollars per pound, then take the $33.89, and divide that by 4.54 lbs, to get 7.46 dollars per pound (Don't forget your units) If the question asked, "Which store has the better deal", then the second store would be the better priced shrimp :) Hope this helped