Zoe is comparing two local yoga programs. Yoga-Weight charges $90 dollars a month and a registration free of $35. Essence of Yoga charges $80 per month with a $75 registration fee. After how many months will the two schools charge the same amount?
+130513 Let m be the number of months it takes to equalize the costs.....and we have
90m + 35 = 80m + 75 subtract 80m, 35 from each side
10m = 40 divide both sides by 20
m = 4 [ They will have cost the same after 4 months ]
[Thanks to Guest for spotting my careless mis-type]
