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Kruka [31]
3 years ago
6

5(2a - 6) + 3a The answer is 13a - 30 right?

Mathematics
1 answer:
Flura [38]3 years ago
6 0

Step-by-step explanation:

5(2a - 6) + 3a

10a - 30 + 3a

13a - 30

right

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Systems of equations substitution y=8 y=x+1
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(8) = x +1

same thing as 8 = 1x

divide both sides by 1 and x = 8 Y= 8
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Find the y-intercept and graph the equation y=15x​
icang [17]

The y-intercept is 0 because you can add it to the equation and it won't change your slope.

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Find the solution of the system of equations.<br> 5x +y = 35<br> -5x + 5y = -5
kherson [118]

Answer:

Y = 5

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Step-by-step explanation:

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6 0
3 years ago
a satelite moves at the speed of 27,000 kilometers per hour what 4 number could be the actually speed of the satelite
Anvisha [2.4K]
If the satellite moves at a speed of 27,000 km p/h, your answer depends on the question.

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27,000x = S                 [for S stands for the ultimate speed of the satellite]

Of course, if this is a 3rd grade level question, I highly doubt they have even gotten started to including the alphabet into math. 

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To explain this to her, just say that the speed needs to be multiplied by the amount of hours it has traveled. (I got 4 because there is a '4' in the question instead of 'for').

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If her teacher decides to ask why that number, have her explain the question did not make sense so she plugged in a 4 to find an answer to a certain amount of hours. 

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7 0
3 years ago
REALLY EASY NEED ANSWER BY 10:00 P. M. AND WILL GIVE BRAINLEIST. PLS HURRY IF YOU HAVE TIME PLEASE ANSWER OTHER QUESTIONS PLS TH
EleoNora [17]

Answer:

1. Multiply 6 each time. Equation: 6x = y

2. Multiply 15 each time. Equation: 15x = y

Step-by-step explanation:

Check. Let:

Input = x

Output = y

Put the data into the equation given:

Equation: 6x = y

When x = 1; y = 6

6(1) = (6)

6 * 1 = 6

When x = 2; y = 12

6(2) = (12)

6 * 2 = 12

When x = 3; y = 18

6(3) = (18)

6 * 3 = 18

etc.

Check. Let:

Input = x

Output = y

Put the data into the equation given:

Equation: 15x = y

When x = 1; y = 15

15(1) = (15)

15 * 1 = 15

When x = 2; y = 30

15(2) = 30

15 * 2 = 30

When x = 3; y = 45

15(3) = 45

15 * 3 = 45

etc.

~

3 0
3 years ago
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