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Triss [41]
2 years ago
9

Carl ran around the track 3 more times than Daria and 2 fewer times than Erin. When they were done they added up the number of l

aps that all ran. How many laps did they run in total in terms of the number of laps that Daria ran?
Mathematics
1 answer:
Paul [167]2 years ago
3 0

Answer:

Total laps = 10d

Step-by-step explanation:

Let c = Carl's laps

d = Daria's laps

e = Erin's laps

c = 3d

c = e/2

c + d + e = totals laps

We can insert 3d in place of c in the third equation

3d + d + e = total laps

Also, e/2 equals 3d

e/2 = 3d

Multiply both sides by 2

(e/2 = 3d)2

e = 6d

Insert the new e

3d + d + 6d = 10d = totals laps

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