The cost to park at a local parking garage for a day is $10 per hour for the first 5 hours. After the first 5 hours, the cost is $6 per hour. Create an equation that shows the cost, C, for parking x hours if you park for up to 5 hours? Create an equation that shows the cost, T, for parking h hours if you park for more than 5 hours. If you paid $68, how many hours did you park for?

(10)5+6h=T

Step-by-step explanation:

(10)5 this represents the $10 per hour for the first 5 hours

+6h this represents the $6 per hour you pay if you are parked for more than 5 hours

If this equation is correct, then if you payed $68, you would have been parked for 8 hours.

(10)5+6h=68

50+6h=68

50+6h-50=68-50

6h=18

6h/6=18/6

h=3

So add those 3 hours to the other 5 hours and you were parked for 8 hours total. Hope this helps!

geometry: triangles

solvers

lessons

answers archive

call the larger triangle abc

then the smaller triangle cde is similar to abc (all angles are equal, aaa).  

ab is the side that is 36, and we wish to find de, the side corresponding to ab

area_cde = area_abc - area_cde --> area_abc / area_cde = 2

let x=length of de

ratio of areas = (ratio of sides)^2

+2+=+%2836%2fx%29%5e2+

+2+=+1296%2fx%5e2+

++x%5e2+=+1296%2f2+=+648+

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