Answer:
(a)


(b)
Bag of popcorn = $6
Candy = $5
Step-by-step explanation:
Given


Jackson: x = 8; y= 2; Total = 58
Cooper: x = 4; y= 5; Total = 49
Solving (a): System of equation
For Jackson:

This is done by multiplying each variable by the quantity.
Same will be applied to Cooper's purchase:
Cooper:

Solving (b): Price of 1 bag of popcorn and 1 candy
This implies that we solve for x and y
----- (1)
-------- (2)
Multiply the second equation by 2

-------- (3)
Subtract the (1) from (3)



Solve for y


Substitute 5 for y in (1)





Solve for x


This implies:
Bag of popcorn = $6
Candy = $5
Answer:
The commutative postulate for multiplication
Step-by-step explanation:
Answer:
5
Step-by-step explanation:
Vanilla ice cream = 3/5 x 25 = 15
Remaining = 25 - 15 = 10
Mint ice cream = 1/2 x 10 = 5
Remainder = 10 - 5 = 5 = vanilla
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