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Alexxx [7]
3 years ago
12

Please Someone I need Help With 1-8

Mathematics
1 answer:
lina2011 [118]3 years ago
8 0
5) k/35=3/7 : cross multiply
    35*3=7k   : simplify
    105=7k     : divide both sides of  the equation by 7
    k=15

6) 3/t=18/24  :cross multiply
     18t=24*3  :simplify
      18t=72   : divide both sides of the equation by 18
       t=4

7) 10/8.4 = 5/m  :cross multiply
    10m=5 * 8.4  :simplify
     10m=42   :divide both sides by 10
      m=4.2
      




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Answer:

Step-by-step explanation:

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y = mx + c 

where m is the slope and c is the y-intercept

1- getting the slope:

We are given the two points:

(6,10) representing (x1 , y1)

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The slope of the line will be calculated as follows:

m = (y2-y1) / (x2-x1) = (7-10) / (12-6) = -3/6 = -0.5

The equation of the line now becomes:

y = -0.5x + c

2- getting the value of the y-intercept:

To get the value of the y-intercept (c), we will use any of the given points, substitute in the equation of the line and solve for c. I will use the point (6,10) as follows:

y = -0.5x + c

10 = -0.5(6) + c

10 = -3 + c

c = 13

Based on the above, the equation of the line would be:

y = -0.5x + 13

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