three apples and four bananas cost $4.85,three apples and ten bananas cost $8.75, find the cost of an apple

Answer 1

Let A be the Apple cost and B be the banana cost.

3A + 4B = $4.85
3A + 10B = $8.75

Subtract the first equation from the second.

6B = 3.90
B = 0.65

3A + 4B = 3A + 2.60 = 4.85
3A = 2.25
A = 0.75

Answer 2

berts age is 30. three times berts age plus 8 times ernie age is 108 how old are bert and ernie

Answer 3

four pounds of apples cost $1.96