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emmasim [6.3K]
3 years ago
9

Mark is 3 less than 4 times as old as tim. Together their ages total 42. How old is mark

Mathematics
1 answer:
lorasvet [3.4K]3 years ago
7 0

Answer:

30

Step-by-step explanation:

3*4=12

42-12=30

=30

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Let's solve this problem graphically. Here we have the following equation:

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So the solution to the equation is the x-value at which the functions f and g intersect. In other words:

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