Publix sells apples and oranges for $0.79 per pound. Marc puts 1.2 pounds of oranges in his cart then adds some apples. The tota
l cost of his apples and orange is $6.27.
1 answer:
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Answer: 3x² + 4a
Answer:
y =
Step-by-step explanation:
Given that y varies directly as x then the equation relating them is
y = kx ← k is the constant of variation
To find k use the condition y = 7 when x = 3
k = =
, thus
y = x ← equation of variation
When x = 7, then
y = × 7 =