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anygoal [31]
3 years ago
8

A washer and a dryer cost $942 combined. The washer costs $42 more than the dryer. What is the cost of the dryer?

Mathematics
2 answers:
Anestetic [448]3 years ago
7 0
W + d = 942
w = d + 42

d + 42 + d = 942
2d + 42 = 942
2d = 942 - 42
2d = 900
d = 900/2
d = 450 <=== dryer costs $ 450

w = d + 42
w = 450 + 42
w = 492 <=== washer costs $ 492
zalisa [80]3 years ago
5 0
The dryer costs 900 because you subtract 942 from 42 and you get the total of the dryer. 
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Answer: 61.92751306414704

Step-by-step explanation:

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3 years ago
Romb ma obwód równy 32 cm. Jakie jest pole tego rombu, jeżeli jego wysokość ma 3 cm?
Goshia [24]

Answer:

24 cm²

Step-by-step explanation:

Z zadanego powyżej pytania uzyskano następujące dane:

Obwód (obwód) = 32 cm

Wysokość (h) = 3 cm

Obszar rombu (A) =?

Następnie określimy długość boku rombu. Można to uzyskać w następujący sposób:

Obwód, czyli obwód (P) = 32 cm

Strona (y) =?

P = 4 s

32 = 4 s

Podziel obie strony przez 4

s = 32/4

s = 8 cm

Stąd długość boku rombu wynosi 8 cm

Na koniec określimy obszar rombu w następujący sposób:

Długość boków = 8 cm

Wysokość (h) = 3 cm

Obszar rombu (A) =?

A = sh

A = 8 × 3

A = 24 cm²

Dlatego obszar rombu jest

24 cm².

8 0
3 years ago
During a period of 112 minutes, a music station played 40 minutes of commercials. What
Gemiola [76]

Answer:

9:5

Step-by-step explanation:

  1. 112 - 40 = 72. 112 represents the total time, but you are comparing music to commercials, so you have to subtract the commercial time from the total time.
  2. Find the GCF of 72 and 40, which is 8.
  3. Divide 72 and 40. The simplified ratio is 9:5.
5 0
2 years ago
What is the equation of the line that passes through the point (-4,8) and has a slope of -1/4
iragen [17]

Answer:

Step-by-step explanation:

When a slope of a line and a point passing through it is given then we use slope - one point form to determine the equation of the line.

It is given by:

                      $ (y - y_1) = m (x - x_1) $

where $m$ is the slope of the line and

           $ (x_1, y_1) $ is the point passing through it.

Here, $ m = \frac{-1}{4} $ and $ (x_1,y_1) = (-4,8) $

Substituting in the equation:

$ y - 8 = \frac{-1}{4} (x + 4) $

$ \implies 4y - 32 = -x - 4 $

$ \implies x + 4y - 28 = 0 $

3 0
2 years ago
Who know the answer to this?
melomori [17]

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4 0
2 years ago
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