you are selling note cards an calenders for a school fundraiser.you have sold 15 items worth a total of $117.a box of note cards costs $10 an a calender costs $7.how many of each items hav u sold? plz help me
2006-09-22 14:29:48 · 3 answers · asked by jazzyjj 2 in Science & Mathematics ➔ Mathematics
Let x be the number of notecards sold.
Let y be the number of calendars sold.
Your two equations are:
x + y = 15
10x + 7y = 117.
From the first equation, you get x = 15 - y
Plug that into the second equation:
10*(15-y) + 7y = 117
Solve that equation for y, then use the y-value to figure out x.
2006-09-22 14:33:26 · answer #1 · answered by Bramblyspam 7 · 2⤊ 0⤋
say u sold 14 boxes of note cards and 1 calender.
0r 13 and 2
12 ?#
2006-09-22 21:40:21 · answer #2 · answered by BIG WILLIE THE GEORGIA TITIAN 4 · 0⤊ 1⤋
4 boxes of note cards
11 calendars
(see my other post!)
2006-09-22 21:37:38 · answer #3 · answered by whatthe 3 · 0⤊ 1⤋