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Julli [10]
3 years ago
10

Mrs. Atkins pays $1800 for a new refrigerator, washer and dryer. The refrigerator cost $250 more then the washer. The dryer cost

half as much as the washer how much does the washer cost?
Mathematics
1 answer:
Talja [164]3 years ago
3 0

Answer:

$620

Step-by-step explanation:

Let the price of refridgerator be "r"

price of washer be "w"

and

price of dryer be "d"

Total 1800, that means, we can write:

r + w + d = 1800

Also, refrigerator cost 250 more than washer, so we can write:

r = w + 250

The dryer is HALF (0.5) of washer, so we can write:

d = 0.5w

Now, we replace equation1 with equation 2 & 3, so get an equation in "w" and solve for w:

r + w + d = 1800

w + 250 + w + 0.5w = 1800

2.5w + 250 = 1800

2.5w = 1800 - 250

2.5w = 1550

w = 1550/2.5

w = 620

Thus, the washer costed $620

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Answer:

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Step-by-step explanation:

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3 years ago
Which is the solution to this system of equations? <br><br> 2x+y=8 <br> 2x+y=4
Sav [38]

Answer:

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Step-by-step explanation:

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6 0
3 years ago
the tens digit of a two digit number is 5 greater the units digit. If you subtract double the reversed number from it, the resul
likoan [24]

Given:

The tens digit of a two digit number is 5 greater the units digit.

If you subtract double the reversed number from it, the result is a fourth of the original number.

To find:

The original number.

Solution:

Let n be the two digit number and x be the unit digit. Then tens digit is (x+5) and the original number is:

n=(x+5)\times 10+x\times 1

n=10x+50+x

n=11x+50

Reversed number is:

x\times 10+(x+5)\times 1=10x+x+5

x\times 10+(x+5)\times 1=11x+5

If you subtract double the reversed number from it, the result is a fourth of the original number.

11x+50-2(11x+5)=\dfrac{1}{4}(11x+50)

11x+50-22x-10=\dfrac{1}{4}(11x+50)

40-11x=\dfrac{1}{4}(11x+50)

Multiply both sides by 4.

160-44x=11x+50

160-50=11x+44x

110=55x

Divide both sides by 55.

\dfrac{110}{55}=x

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The unit digit is 2. So, the tens digit is 2+5=7.

Therefore, the original number is 72.

6 0
2 years ago
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