I think you need to add a picture?
Common difference is -2.5
answer is an = 15.5 - 2.5n
Discount=0.25x35=8.75
Original price-discount
35-8.75
=26.25 is the sale price
Step-by-step explanation:
| | |
2 | ($25 x 2) = $50 | ($11 x 2 + 18) = $40 | Profit = $50 - $40 = +$10
| ---- | -------- | -------
3 | ($25 x 3) = $75 | ($11 x 3 = 18) = $51 | Profit = $75 - $51 = +$24
| ---- | --------- | -------
Total Number of toys = 1+2+3 = 6
Total Earnings = $25+$50+$75 = $150
Total Cost = $29+$40+$51 = $120
Total Profit = $150-$120 = +$30
The rate at which the gas powered pump deliver water is 160.9 litres per seconds
<h3>How to convert rate?</h3>
The gas powered water pump delivers 42.50 gallons of water per minute.
Therefore,
1 gallon = 3.78541 litres
42.50 gallons = ?
cross multiply
volume = 42.50 × 3.78541 = 160.879925 litres
Hence,
60 seconds = 1 minutes
1 second = ?
time = 1 / 60 = 0.01666666666 seconds
Hence,
rate = 160.9 litres per second
learn more on rate here: brainly.com/question/20561529
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