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kenny6666 [7]
3 years ago
8

Suppose that you currently own a clothes dryer that costs $25 per month to operate A new efficient dryer costs $590 and has esti

mated operating cost of $15 per month. How long will it take for the new dryer to pay for itself? The clothes dryer will pay for itself in _months.
Mathematics
1 answer:
MArishka [77]3 years ago
6 0

Answer:

After 59 months the new dryer will pay for itself.

Step-by-step explanation:

Let the new clothes dryer takes 'x' months to pay for itself.

Then the operating cost of the new dryer will be = 15x

Since cost of the new dryer = $590

So, total cost of the dryer in x months = $(590 + 15x)

Now we know old dryer's operating cost is = $25 per month

So, operating cost for x months = 25x

By the time when new dryer's total cost becomes equal to the old dryer's operational cost, the new dryer will pay for itself.

Now we can get the value of x by equating the old dryer's operational cost and the new dryer's total cost.

25x = 590 + 15x

25x - 15x = 590

10x = 590

x = \frac{590}{10}

x = '59 months'

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Don has 6 pieces of pipe. Each piece is 2 feet 6 inches long.
Alex777 [14]

Answer: 15 feet

Step-by-step explanation:

First you start with 2ft and 6in and convert it all into into inches.

If you know that 1 ft=12in then you know that 2 feet is the same as saying

12+12=24. If you don't understand use this chart-

1 ft=12in

2ft= 24in

3ft= 36in

4ft =48in

5ft= 60in

6ft= 72in

see I am counting by 12's.

Now take 2ft and convert it into inches. That would be 24 in (look in the chart).

now take the 24in(2ft) and add it to the 6in. So 24+6 =30

So now you know that one piece of pipe is 30in long.

But in the text it states that Don has 6 pieces, so...

because it says that he has 6 pieces of pipe then you are going to take that and multiply that number(6) by how long each piece is. look up and it shows how long each pieces is. They are all each 30in long. Take 30 and multiply that by 6 because there are 6 pipes and you will get 120in.

But it says that they need an answer of feet and inches or just feet if it exactly a some sort of foot like 43feet or 2 feet.  

So then we are going to convert 180 into feet by dividing 180 by 12 and you get 15. So the answer is 15.

I hope this helps. Have fun learning!!

6 0
2 years ago
You want to buy a house in 9 years. The estimated cost is $175,800.00. You want to make a 20% down payment and closing costs are
Mademuasel [1]
Given:
buy a house in 9 years.
Estimated cost of the house = 175,800
down payment = 20%
closing cost = 7%

down payment:
175,800 x 20% = 35,160

closing cost:
175,800 x 7% = 12,306

Amount to save: 35,160 + 12,306 = 47,466

monthly savings:
9 years x 12 months = 108 months

47,466 / 108 = 439.50 savings per month.
6 0
3 years ago
Lucy’s parents built a swimming pool in the backyard. Use 3.14 for π.
Rus_ich [418]

Answer:

Distance around the pool = 162.8 feet

Area of the pool = 957 square feet

Step-by-step explanation:

Distance around the swimming pool = Perimeter of the pool

Perimeter of the pool which is a composite figure will be,

= Circumference of the semicircle + Sum of three sides of the pool

= πr + 2×(length of the pool) + width of the pool

= 3.14×(10) + 2×40 + 20

= 62.8 + 80 + 20

= 162.8 ft

Area of the pool = Area of the semicircle + Area of the rectangular pool

                           = \frac{1}{2}(\pi)(r)^{2}+(\text{length}\times \text{Width})

                           = \frac{1}{2}(3.14)(10)^2+(40\times 20)

                           = 157 + 800

                           = 957 square feet

8 0
3 years ago
CAN SOMEONE PLEASE HELP ME ASAP ILL MARK BRAINLIST!!!!!
goldenfox [79]

Answer:

40 x 9 = 360 + 4 = 364

5 x 9 = 45 +8 = 53

364-53= 311

311/9

8 0
3 years ago
What is the area of a parallelogram with a base of 8 m and a height of 6 m?
shtirl [24]

Answer:

48 square m

Step-by-step explanation:

The area of a parallelogram is simply b * h, where b is base and h is height. In this case, b = 8 and h = 6. So:

A = bh = 8 * 6 = 48 square m

4 0
3 years ago
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