Question 907247
Company A - 0 + .8x (where x is miles driven)
Company B - 50 + .5x
To find when they are equal, set them against each other and solve for x.
.8x = 50 + .5x
Subtract .5x from each side
.3x = 50
Divide each side by .3
x = 166{{{2/3}}}
If you drive 166 miles or less, Company A is the better deal
If you drive 167 miles or more, Company B is the better deal<br>
With 166 miles, Company A charges .8 * 166 or $132.80 while Company B will charge 50 + (166*.5), or $133
With 167 miles, Company A charges $133.60 while Company B charges $133.50