Question

Solve for x.

Area =45 square units
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| | 5
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x

Answer 1

Given:

• Length = 5 units
• Width = x units

Formula of area of rectangle: LB

Use the formula to find the area of the rectangle.

• Formula of area of rectangle = LB
• => Formula of area of rectangle = (5)(x) = 45
• => (5)(x) = 45
• => x = 45/5
• => x = 9

The measure of x is 9 units.

Answer 2

x = 9

Explanation:

Area of a rectangle = lw

To find the length you divide 45 by 5 to get 9 because,

45 = 5 x 9