help with word problem?

Algebra
Tutor: None Selected Time limit: 1 Day

The amount of time (t) in minutes it takes Jeff to mow an average sized yard is related to (n) the number of yards he mows. The equation is t = 2n + 12. How many lawns does Jeff mow if it takes him 30 minutes?

May 19th, 2015

Hello!  This is like your last problem, except now you are given the value for t instead of n

t=2n+12

plug in 30 minutes for t, then solve for n:

30=2n+12

18=2n

n=9

Jeff mows 9 lawns.

Let me know if you have any questions!


May 19th, 2015

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