A rectangular field has a length 10 meters more than it is width. If the area of the field is 144, what is the length (in meters) of the rectangular field? Choose the correct choice from the following answers.
A) 16  B) 18  C) 20  D) 22  E) 24
area = l * w = (L) * (L-10) = 171   trial and error:    20*10= 
<gadget id="calculator"> 20*10</gadget>
<output>200</output>
200 (too high)   19*9= 
<gadget id="calculator">19*9</gadget>
<output>171</output>
171 (too high)   18*8= 
<gadget id="calculator">18*8</gadget>
<output>144</output>
144   The length is 18 meters.   The answer is 18.
<result>B</result>
A rectangular field has a length 10 meters more than it is width. If the area of the field is 144, what is the length (in meters) of the rectangular field?