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Ber [7]
3 years ago
14

How do I do this? I don’t understand

Mathematics
2 answers:
Firdavs [7]3 years ago
8 0

Answer:

15, 32, and 2

Step-by-step explanation:

y=3x

1st Step: plug in 5 into "x" in the equation to get what "y" is in the first row...

(y=3(5)) which then equals 15.

2nd Step: You do the same method but for "y"... ((96)=3x)) so you solve for "x" by diving 3 on both sides...the answer should be 32

3rd Step: Once again you do the same step as 1 and 2... plug 2/3 for "x" and solve for "y".... (y=3(2/3))=2

Ganezh [65]3 years ago
5 0
You have to input the 5 into the x place. so it would be y=3(5) and you get the answer y=15
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6 0
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Zepler [3.9K]

Answer:

Option B. 0.75 gallons is the right answer.

Step-by-step explanation:

Let the load of dishwasher used in house A = x gallons

Let the load of dishwasher used in house B is = y gallons

and similarly we assume for house C = z gallons

Now from the given question

On Friday amount of water used in all three houses = 17.5 gallons

From the table we will make the equation

x + 2y + 2z = 17.5-----(1)

For Saturday

2x + 3y + 4z = 31.5 ----(2)

For Sunday

2x + 2y + 3z = 24.75 -----(3)

By subtracting equation 3 from 2

y + z = 31.5 - 24.75 = 6.75 ------(4)

Equation (1) multiplied by 2 - equation (2)

2×(x + 2y + 2z) - (2x + 3y + 4z) = 17.5×2 - 31.5

y = 35 - 31.5 = 3.5

By putting y = 3.5 in the equation (4)

z = 6.75 - 3.5 = 3.25

By putting y = 3.5 and z = 3.25 in the equation (1)

x + 7 + 6.5 = 17.5

x = 17.5 - 13.5 = 4

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x - z = 4 - 3.25 = 0.75 gallons

Option B is the right answer.

6 0
3 years ago
.
labwork [276]
The correct answer would be C

Hope this helped
8 0
3 years ago
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