3 1/2r=28
3.5r=28
cross of 3.5 and r remains
divide 28 and 3.5
and r=8
r=8
Answer: x= 34
Step-by-step explanation:
Answer:
201, 500ft²
Step-by-step explanation:
The formula for calculating area in this case is;
<em>A = w × l</em>
This means we're going to take the width of the runway (65ft) and multiply it by the length of the runway (3100ft).
(To make it easier on paper, you can swap the two numbers around, so the higher number is on top, and the smaller number is on the bottom - 3100 × 65. It won't change the answer, but it will make it quicker and easier to get to the result, and lessens the chances making a mistake.)
So the equation you need to do is;
<em>3,100 × 65 = 201, 500.</em>
Add on the units, and there's your answer;
201, 600ft²
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Hope this helped!</h2>
