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How many cans of paint are needed to cover an area of 2,200 square units if one can of paint covers an area of 400 square units?
The Correct answer is 5.5 cans
Explanation
Divide the total area to be painted by the area covered by one can:
Number of cans = Total area / Area per can Number of cans = 2,200 square units / 400 square units/can
Perform the calculation:
Number of cans = 5.5 cans
Square units
Square units are a way to measure the size of a two-dimensional space or surface. Imagine you have a square with sides that are each one unit long. This square represents one square unit. When you measure an area in square units, you’re essentially counting how many of these one-by-one squares can fit into the space you’re measuring.
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For example, let’s say you have a rectangle that is 3 units long and 4 units wide. To find the area of this rectangle, you would multiply its length by its width:
Area=Length×Width=3×4=12 square units
This means that you can fit 12 of the one-by-one squares into the rectangle. Each of these squares represents one square unit.
Square units are commonly used to measure areas of rooms, fields, and other flat surfaces. Different units are used depending on the context, such as square feet, square meters, or square inches, but the concept of measuring in square units remains the same
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Source: Math Hello Kitty
Categories: Math
