The concept that is useful in order to answer this item is the concept of ratio and proportion. Let x be the height of the rock from the ground. We use the equation below to answer.
5.5 ft / 18 ft = x ft / 209.5 ft
The value of x from the equation is 64 ft. Thus, they will be needing approximately 64 ft of rope.
Where is the rest of the question?
(0.14×675×25)÷(2×12)=98.44
675+98.44=773.44
773.44÷24=32.23
Answer:
10/28
Step-by-step explanation:
