posted by Kat on .
James sold magazine subscriptions with three prices: $26, $19, $ 23. He sold 3 fewer of the $26 subscriptions than of the $19 subscriptions and sold a total of 32 subscriptions. If his total of sales amounted to $716, how many $23 subscriptions did James sell?
Ace Rent a Car charges a flat fee of $15 and $0.25 a mile for their cars. Acme Rent a Car charges a flat fee of $30 and $0.17 a mile for their cars. Use the following model to find out after how many miles Ace Rent a Car becomes more expensive than Acme Rent a Car. c= 15+0.25m Ace, c=30+0.17m Acme
Can someone please help me with these two problems?
I will do the first, you do the second
number of $19's --- x
number of $26's --- x-3
number of $23's --- 32 - x - (x-3) = 35-2x
19x + 26(x-3) + 23(35-2x) = 716
19x + 26x - 78 + 805 - 46x = 716
-x = -11
x = 11
he sold 11 of the $19's
8 of the $26's and
13 of the $23's