inequalities problem!? can u plz tell me how u got ur answer?
u own a printing shop & order paper each week to meet ur customers’ printing needs. Company A charges .50 for a ream of 500 sheets of paper plus a delivery fee for each order. Company B charges only for a ream but charges a delivery fee for each other
1) let x represent the number of reams of paper u purchase. write an expression that represents the total cost of purchasing paper from Company A. write an expression that represents the total cost of purchasing paper from Company B
2) choose 2 different amounts of paper between 50 reams and 150 reams that u cud purchase. calculate the charges from each supplier.
3) write an inequality that represents orders for which company A offers the lower price. write an inequality that represents orders for which company B offers the lower price.
1)
Total cost of purchasing paper from Company A
y = 4.50 x + 25
Total cost of purchasing paper from Company B
z = 4.00 x + 75
2)
* for x = 60:
y = 270 + 25 = $ 295
z = 240 + 75 = $ 315
* for x = 120:
y = 540 + 25 = $ 565
z = 480 + 75 = $ 555
3)
(a) y < z
4.50 x + 25 < 4.00 x + 75
(b) z < y
4.00 x + 75 < 4.50 x + 25