1.) Let x = the amount of nuts.
Let y = the amount of dried fruit.
We are told:
x + y = 6
4x+3.5y = 22
Substitute by solving first equation for x:
x=6-y
4(6-y)+3.5y=22
24-4y+3.5y=22
-0.5y=-2
Thus, y = 4
So since x =6 - y
x = 2.
Hunter will buy 4 pounds of dried fruit and 2 pounds of nuts.
2) Let x = the number of tickets sold before the day of the show. Let y = the number of tickets sold the day of the show.
x + y = 600
5x*7y =3500
We are given x = 330.
Thus y = 600 - 330, or 270. The club can sell 270 tickets the day of the show.
Is it enough?
5*330+7y = 3500
1650 +7y =3500
7y = 1850
y ~= 264.2 which is less than 270.
Thus, there are enough tickets available for sale on the day of the show that would allow the club to reach the sales goal of $3500.