Simplify 3a+8+a-9-2a
2 answers:
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Answer:
(a)
A single avocado costs $1
A single tomato costs $0.5
(b)
An avocado costs twice as much as a tomato
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Step-by-step explanation:
Represent the tomatoes with T and the avocados with A.
So, we have:
--- (1)
--- (2)
Solving (a): The price of each
Multiply (1) by 1.5
--- (3)
Subtract (3) from (2)
Divide both sides by 2
Substitute 1 for A in (1)
Make 4T the subject
Divide both sides by 4
Solving (b): Analysis
In (a), we have:
<em>We can say that an avocado costs twice as much as a tomato</em>