Answer:
6/19
Step-by-step explanation:
<span>The length of a rectangle is 5 units longest than its width. which if the following represents its area in square units?
</span>The length of a rectangle is 5 ft more than its width" means that the length is x+5 units. <span>Since "its area is 84 square feet", we know that x(x+5)=84</span>
Answer:
One train weighs 30 tons and another train weighs 99 tons.
Step-by-step explanation:
30+99 adds up to 129
Answer:
Length:
11
Width:5
Step-by-step explanation:
Let's say x is the width, then length is 3x-4
Area of a rectangle is Length times width
so x(3x-4)=55
then we solve
3x^2-4x-55=0
(3x+11)(x-5)=0
x cannot be negative so x=5
then if the width is 5, length is 3*5-4=11