Question

The perimeter of a rectangular table is 20 feet. The width of the table is 3 feet. What is the length of the table

Answer 1

Answer:

7 ft

Step-by-step explanation:

Perimeter of a rectangle is denoted by the formula: $P=2l+2w$ , where l is the length and w is the width.

We know that P = 20 and that w = 3. So, let's plug these values in:

$20 = 2l+2*3=2l+6$

Isolate the variable $l$ by subtracting 6 from both sides and dividing by 2:

$2l=20-6=14$

$l=7$

Thus, the answer is 7 feet.

Hope this helps!

Answer 2

Answer:

7 feet

Step-by-step explanation:

Perimeter = 2(length + width)

20 = 2(length + 3)

length + 3 = 10

length = 7 feet