Which of the following numbers is not a solution of the inequality
3x -5 > 4x-3
answer:$70 y = 25 + 0.9x $250
1. 10% of $50 is $5, so the purchases would come to $50 -5 = $45. added to the $25 membership fee, the total cost for the year would be
$45 +25 = $70
2. the member pays $25 even if no purchases are made. then any purchases are 100% - 10% = 90% of the marked price. so, the total is
y = 25 + 0.90x
3. $25 is 10% of $250, so that is the amount the member would have to purchase to break even on cost.
if you like, you can compare the cost without the membership (x) to the cost with the membership (25+.9x) and see where those costs are equal.
x = 25 +0.9x . . . x is the spending level at which there is no advantage
0.1x = 25 . . . . subtract 0.9x
25/0.1 = x = 250 . . divide by 0.1
washington , west virginia, wisconsin, and wyoming
u is because it's your total amount
12 is because christopher has 12 less then you which also explains the minus sign
z is representing the amount of cards you have
3x -5 > 4x-3...