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GarryVolchara [31]
3 years ago
10

Ace's brother is 9 years older than three times his age. the sum of their ages is 57 .how old is Chris?

Mathematics
1 answer:
Paraphin [41]3 years ago
6 0

Answer:

3x+9=57; Chris is 16 years old

Step-by-step explanation:

3x+9=57

Move the Constant to the right

3x=57-9

Calculate

3×=48

Divide both sides

x= 16

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Step-by-step explanation:

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Looking at the graph, we can see that the line intersects the y-axis at y = 7. So 7 would be our y-intercept.

To find the slope, we would divide the rise of the line by the run. Or m = rise/run. From looking at the graph, we can see that for every 1 unit the line moves in the x-direction, the line moves in the y-direction by 1 unit. Therefore, the rise would be 1 and the run would be 1. 1/1 = 1 so the slope of the line would be 1.

Plugging in 7 for b and 1 for m into the equation for the slope-intercept form, we get:

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I hope you find my answer and explanation to be helpful. Happy studying.

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