The length of a rectangle is equal to three times its width. if the perimeter is equal to 240 ft. what is the length of the rectangle?

The answer would be 90 because if you put it into parts 1 part width then 3 parts and another 1 part width and 3 length length that would make 8 parts. divide 240 by the 8 parts gives you the width of 30. then you times that by 3 to get 90. hope that helped

Answer: d. 39 cmin the diagram, the approximate length of the minor arc de is 39 centimetres.step-by-step explanation: the formula for the length of an arc in a circle is as displayed below.let the length of the minor arc de = xx = 2( pi )r × angle of sector / 360°from this, we will substitute the values given from the problem into the formula to obtain the length of the minor arc de.x = 2( pi )r × angle of sector / 360°r = radius = 25cmpi as an approximate value = 3.14angle of sector = 120°x = 2( 3.14 )( 25 ) × 120° / 360°x = 157 × 1 / 4x = 39.25x = 39 ( rounded to the nearest whole number as an approximate value )