I need help with number 5
1 answer:
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According to the information given in the exercise, the following expression represents the area of the rectangular garden:
And the following expression represents the combined area of the walkway around the rectangular garden and the area of the garden:
You can identify that the word "combined" indicates that that expression was obtained by adding both areas.
Knowing the above, you can set up the following equation:
Where "A" is the area of the walkway around the rectangular garden.
Solving for "A", you get the following expression:
The answer is:
Given : Andre drove 200 Miles using 9 Gallons of Gas
⇒ Andre drives 1 Mile using
⇒ Andre drives (420 × 1 Mile) using
⇒ Andre drives 420 Miles using 18.9 Gallons of Gas