Answer:
let cost of each pound of trail mix be x any y respectively
For 2 pounds of trail mix and 5 pounds of jelly beans, the total cost is $10
2x +5y = 10.....(1)
For 8 pounds of trail mix and 3 pounds of jelly beans, the total cost is $23
8x +3y = 23.....(2)
2x +5y= 10 ....... × 4
8x +20y = 40.....(3)
8x +3y = 23 ( from (2))
(3) - (2)
17y = 17
y= 1
8x +3y = 23
8x +3 = 23
8x= 20
x= 2.5
Cost for each pound of trail mix= $2.5
Cost for each pound of jelly beans= $1
Answer:
Step-by-step explanation:
Let's say
d1 the outflow of the first pump
d2 the outflow of the second pump
V=1 is the volume of the tank
Since the second pump takes twice as long as the first to fill the tank,

Two pumps can fill a pool tank in 26 hours when working together:

How long does it take the first pump alone to fill the tank:

Answer:12
Step-by-step explanation:i think because 3•2•3
Terrance: 12 miles/1 hour
Jesse: 8 miles/1 hour