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PtichkaEL [24]
3 years ago
5

If y varies directly with x and y=60 when x =15 find k and write an equation of direct variation

Mathematics
1 answer:
Likurg_2 [28]3 years ago
5 0

Answer:

k=45

equation: y=x+45

Step-by-step explanation:

60=15+k

substract 15 on both sides to get 45=k

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Write an equation in slope-intercept form for the line that passes through (1,9) and (3,5).
kozerog [31]

Answer:

The answer to your question is    y = -2x + 11

Step-by-step explanation:

A (1, 9)

B (3, 5)

- Find the slope

 m = \frac{y2 - y1}{x2 - x1}

 m = \frac{5 - 9}{3 - 1}

 m = \frac{-4}{2}

        m = - 2

- Find the line equation

        y - y1 = m (x - x1)

        y - 5 = -2(x - 3)

        y - 5 = -2x + 6

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8 0
3 years ago
Read 2 more answers
=A six-sided number cube is rolled. Find the probability of rolling a number greater than 6.
RUDIKE [14]

Answer:

0 or 0%

Step-by-step explanation:

A six sided number cube is rolled, which means 6 is the value of the side with the largest number. This means that you cannot roll a 7, 9, 10, or anything higher than 6, since the cube doesn't have a face greater than 6. There is 0% chance of rolling a number greater than 6.

Hope this helps!

8 0
3 years ago
Charlie owns a computer repair service. For each computer, they charge $50 plus $45 per hour of work. A linear equation that exp
Paraphin [41]

Answer:

The independent variable (x) is the amount of time John fixes a computer. The dependent variable (y) is the amount, in dollars, John earns for a computer.

y-intercept: (0,50)

Slope: 45

8 0
2 years ago
What is the solution set? m-18<36
avanturin [10]

9514 1404 393

Answer:

  m ≤ 54

Step-by-step explanation:

Add 18 to both sides.

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3 years ago
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mars1129 [50]

Answer:

Step-by-step explanation:

2x + 4 = 6x - 10

Minus 2x on both sides

4 = 4x - 10

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14 = 4x

Divide by 4 on both sides

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x = 14/4

Simplify fraction

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3 0
4 years ago
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