The sum of the length and width of the rectangle is 21 cm. find the length and width of a rectangle if its length is 6 times its width
Let the width of the rectangle be x cm, then its length will be 6x cm. Knowing the sum of the length and width of the rectangle, we can draw up an equation and solve it:
x + 6x = 21;
7x = 21;
x = 21/7;
x = 3.
If x = 3, then the rectangle is 3 cm wide and 18 cm long.
Answer: 3 cm, 18 cm.
3 + 18 = 21;
21 = 21.
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