Question 1090866
15% of a sale price of an article is equal to 25% of the cost
.15s = .25c
Convert so it can be used for substitution
c = {{{(.15s)/.25}}}
c = .6s
 & 
10% of sale price ûexceeds 15% of the cost by to 10.
.10s = .15c + 10
replace c with .6s
.10s = .15(.6s) + 10
.10s = .09s + 10
.10s - .09s = 10
.01s = 10
s = 10/.01
s = $1000 is the sale price
:
find the purchase price? I assume the sale price is the purchase price