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ratelena [41]
2 years ago
12

Given x + 3y = k and x-k= y, which of the following is equal to x?

Mathematics
2 answers:
german2 years ago
4 0
Zooooerrrrrrtttttttttttttttttttrrrrrttt
sweet [91]2 years ago
3 0

k-3yStep-by-step explanation:

You might be interested in
I need help is it A B C or D
SVEN [57.7K]
The answer is D hope this helps :]
4 0
3 years ago
Chang made $156 for 13 hours of work at the same rate, how many hours would he have to work to make $108?
sdas [7]

Answer:

  9 hours

Step-by-step explanation:

"At the same rate" means time and wages are proportional.

  time/wages = t/$108 = (13 h)/$156

  t = 108(13 h)/156 . . . . . . . . . . . . . . . units of dollars cancel

  t = 9 h

Chang would have to work 9 hours to make $108.

8 0
2 years ago
A taxi driver had 27 fares to and from the airport last Monday. The price for a ride to the airport is $14, and the price for a
OLga [1]

Answer:

(15, 12)

Step-by-step explanation:

Let's generate two systems of equations that fit this scenario.

Number of trips to the airport = x

Number of trips from the airport = y

Total number of trips to and from the airport = 27

Thus:

x + y = 27 => equation 1.

Total price for trips to the Airport = 14*x = 14x

Total price of trips from the airport = 7*y = 7y

Total collected for the day = $294

Thus:

14x + 7y = 294 => equation 2.

Multiply equation 1 by 7, and multiply equation 2 by 1 to make both equations equivalent.

7 × x + y = 27

1 × 14x + 7y = 294

Thus:

7x + 7y = 189 => equation 3

14x + 7y = 294 => equation 4

Subtract equation 4 from equation 3

-7x = -105

Divide both sides by -7

x = 15

Substitute x = 15 in equation 1

x + y = 27

15 + y = 27

Subtract both sides by 15

y = 27 - 15

y = 12

The ordered pair would be (15, 12)

7 0
2 years ago
Which set of transformations would prove triangle GFE ~ triangle GHI?
Flura [38]

Answer:

Dilation of 1/2 and then a reflection over y=2

4 0
2 years ago
Read 2 more answers
{(2,-4),(3,-4),(4,-4),(5,-4),(6,-4)}
Musya8 [376]

Answer:

I agree with Selena. Since the x's do not repeat, it is a function.

Step-by-step explanation:

3 0
2 years ago
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