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zzz [600]
3 years ago
15

How do you solve -5+-3?

Mathematics
2 answers:
Paha777 [63]3 years ago
8 0
- 5 + -3 = -8

hope this helps


when a negative number adds a negative number, it will be negative

when a negative number adds a positive number, whichever number (either positive or negative) take the sign of the bigger one

For example:

-4 + 3 = -1

-5 + 10 = 5



hope this helps
dezoksy [38]3 years ago
7 0
Hello there!

In order to solve integers we would need a number with both, positives and negatives 

Remember this method it MIGHT help you out with your assignments like these

negative + negative = positive \\ \\ positive + negative = negative \\ \\ positive + positive  = positive \\ \\ negative + positive  = negative


We have two    negatives in this problem, so this means our answer would be a positive/negative result 

So, -5 + -3 = -8

Therefore your answer would be: -8

Good luck on your assignment and enjoy your day/night

~MeIsKaitlyn:)
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A large appliance such as a water heater is only running when it has clicked on and is actually heating water. The time your wat
mafiozo [28]

a) Total cost (per day) ≈ $1.40

​b) Total cost (per year) ≈ $510

c) New annual cost = $327

d) The number of years that the water heater pays for itself is; approximately 4 years

<h3>How to calculate Energy Bill?</h3>

Wattage per hour = 4200 Watts per hour

Number of hours per day = 3 hours

Cost per unit = $0.11 per kilowatt-hour

Savings rate = 36%

Cost water heater = $1,100

a) The total wattage is the product of the wattage per hour and the number of hours;

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= 4,200 watts per hour × 3 hours

= 12,600 watt-hours

= 12.6 kilowatt-hours

​

The total cost is then the product of the total wattage and the cost per unit:

Total cost (per day) = Total wattage × Cost per unit

Total cost (per day) = 12.6 kilowatt-hours × $0.11 per kilowatt-hour

Total cost (per day) = $1.386

Total cost (per day) ≈ $1.40

​

b) The total cost in a year is the product of the total cost in a day and the number of days in a year. There are 365 days in a year (assuming no leap year).

Total cost (per year) = Total cost (per day) × Number of days in a year

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Total cost (per year) = $511

Total cost (per year) ≈ $510

​

c) We are told that this new water heater saves 36% of annual cost. Thus;

Amount saved = 36% * 510 = $183.6

Thus;

New annual cost = $510 - $183 = $327

d) The number of years that the water heater pays for itself is;

1100/327 = 3.36 or approximately 4 years

Read more about Energy Costs at; brainly.com/question/14277272

#SPJ1

6 0
1 year ago
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Answer:

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Cheers.

4 0
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Please simplify, 50 points.
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Answer:

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Step-by-step explanation:

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