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marishachu [46]
4 years ago
12

The cost of installing an electric heating system for a 3- bedroom home is $5000 and the operating cost is $1,100 per year. A so

lar heating system costs $29,700 to install but only $150 per year to operate. After how many years will total costs for the two systems be the same? What will the cost be?
Mathematics
1 answer:
Lana71 [14]4 years ago
3 0

Answer:22

Step-by-step explanation:

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Using cubes and flats with the number 1,200
vfiekz [6]

A cube represents 1,000 and a flat 100. You can solve this problem by saying the number out loud. "One thousand, two hundred." That means that you need one thousand (cube) and two hundreds (flat). So one cube and two flats will be 1,000+100+100, which equals 1,200.

6 0
3 years ago
Arnold puts $580 in a savings the account pays 3% simple interest. how much interest will he earn in 5 years
Mkey [24]

Answer:Arnold earns $87 of interest in 5 years.

Step-by-step explanation:

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4 years ago
How many one-fifths pieces of pizza are in 5 pizzas
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10 1/5 times 5/1 add the zero
5 0
3 years ago
Read 2 more answers
Toby buys packs of 12 racing cars for R49,99 and sells each racing car for R10 at school
Ratling [72]

Answer:

1.1  R5.83

1.2 R70.01

1.3 58.34%

Step-by-step explanation:

Given that he buys a pack of 12 racing cars  for  R49,99 then the unit cost for a car which is the total cost divided by the number of cars in a pack

= R49,99/12

= R4.17

If each car is sold for R10 then the profit made on each car which is the difference between the cost and the selling price

= R10 - R4.17

= R5.83

The profit margin on one pack of 12 racing cars

Profit margin is the ratio of the profit to the total selling price

The total profit (profit on one pack of 12 racing cars)

= R5.83 * 12

=R70.01

Total selling price = R10 * 12

=R120

Margin = R70.01 / R120

= 58.34%

4 0
3 years ago
Use mental math to find the sum. <br><br> 150 + 20 + 25
stiv31 [10]

Answer:


50 + 20 = 70
70 + 25 = 95
150 + 95 = 245

In conclusion, 150 + 20 + 25 equals to a total amount of 215.


Step-by-step explanation:

Have a great rest of your day
#TheWizzer

6 0
2 years ago
Read 2 more answers
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