Answer:
Step-by-step explanation:
Answer:
Width of the rectangle = 15 inches
Length of the rectangle = 25 inches
Step-by-step explanation:
Let the width of the rectangle = k inches
So, the length of the rectangle = (2k -5) inches
Perimeter = 80 in
Perimeter of a rectangle = 2 (Length + Width)
⇒ 80 = 2(k + (2k -5)
or 80 = 6k - 10
⇒ 6k = 80 + 10 = 90
or k = 90 / 6
⇒ k = 15
So the width of the rectangle = k = 15 inches
And the length of the rectangle = 2k -5 = 2 x 25 - 5 = 25 inches
If you would like
to write the following in the math expression, you can do this using these
steps:<span>
<span>a number ... </span>n
eight less than four times a number ... 4 * n - 8</span>
<span>
is less than 56 ... < 56
4 * n - 8 < 56
4 * n < 56 + 8</span>
<span>4 * n < 64 /4</span>
<span>n < 64 / 4</span>
<span>n < 16</span>
The possible values of that number are less than 16.
