Tins of pears cost 60p. Tins of peaches cost 75p. Mary has £6.00. She buys x tins of pears and y tins of peaches. Explain why 4x+5y<40
PLEASE HELP, ITS FOR A FRIEND
2006-10-18 05:49:46 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
Each tin of pears costs 60p, so the amount you spend on pears is 60x. The amount you spend on peaches is 75y. The total of these two amounts cannot exceed the 600p Mary has. Thus, 60x+75y≤600 . Dividing both sides by 15 yields 4x+5y≤40.
2006-10-18 05:53:17 · answer #1 · answered by Pascal 7 · 1⤊ 0⤋
60x+75y<600
Cost of pears times quantity bought + cost of peaches times quantity bought < 600 (I'm assuming there are 100 pence in a British pound)
Divide everything by 15 to get the inequality that you have.
Hope this helps. Good luck.
2006-10-18 05:53:22 · answer #2 · answered by SmileyGirl 4 · 0⤊ 0⤋
First, you need to upload 9 to the two sides 2y-7(+9) < 5y - 9(+9) which components 2y + 2 < 5y then you definately ought to subtract 2y to the two sides 2y(-2y) +2 < 5y(-2y) and get 2 < 3y divide by utilising 3 and end with 2/3 < y or y > 2/3
2016-11-23 17:44:03 · answer #3 · answered by Anonymous · 0⤊ 0⤋
The explanation offered by Pascal is right
2006-10-18 06:12:53 · answer #4 · answered by Alrahcam 4 · 0⤊ 0⤋
the data u r providing is incomplete
2006-10-18 06:00:22 · answer #5 · answered by sanjay b 1 · 0⤊ 0⤋