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Pavel [41]
3 years ago
12

The washer and dryer cost $1000 combined. The cost of the washer is three times the cost of the dryer. What is the cost of the d

ryer?
Mathematics
2 answers:
Anika [276]3 years ago
5 0
[tex] W + D = 1000 \\
W = 3*D [tex]
Plug the second equation into the first;
[tex] W+D=1000 \\
(3*D)+D=1000\\
4D=1000 [tex]

D = $250
creativ13 [48]3 years ago
3 0
Let the cost of the dryer be x.

Since the washer is 3* the cost of dryer = 3*x = 3x

The total cost = $1000

x + 3x = 1000

4x = 1000

x = 1000/4

x = 250

Since the cost of the dryer be x ,   x = 250

Cost of dryer = $250.

Hope this explains it.
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Evaluate j/k-0.2k when j=25 and k=5
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4

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Read 2 more answers
What are the domain and range of the function f(x)=-3(x-5)squared+4
svet-max [94.6K]
Domain is all real numbers
range
hmm
we know that x^2=a positive number
then multiply it by that negative -3
therefor the range is going to be mostly negative
if we make the x-5  equal to zero, then there is no negative, so
wher x=5, then f(5)=0+4=4
the highest positive number you can get is f(5)=4

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6 0
3 years ago
Given that Begin equation 2/3A = 16, which of the following illustrates how the multiplicative inverse property can be used to f
tatiyna
2/3 A = 16

The multiplicative inverse is also known as the reciprocal. To solve for the value of A, multiplicative inverse is required.
<span>The multiplicative inverse of 2/3 is 3/2. When you divide a number by a fraction, you first get the reciprocal of the fraction. Then, you multiply the number by the reciprocal of the fraction. </span>

2/3 A = 16
A = 16 / 2/3
A = 16 * 3/2
A = 48 / 2
A = 24

To check:
2/3 A = 16
2/3 (24) = 16
48 / 3 = 16
16 = 16
5 0
3 years ago
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