# The length and width of the rectangle together are 21 cm. What is the length and width if the length is 6 times its length?

January 15, 2021 | education

| 1) Let x be the width of the rectangle in centimeters, then the length is x * 6 centimeters. We know that the length and width of the rectangle together are 21 centimeters. Let’s make the equation:

x + x * 6 = 21;

x * (1 + 6) = 21;

x * 7 = 21;

x = 21: 7;

x = 3 centimeters – the width of the rectangle;

2) 3 * 6 = 18 centimeters – the length of the rectangle.

Answer: 3 and 18 centimeters.

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