Question

What was the overall difference in the Lake Erie water level from January 2012 to October 2012? In other words, find the difference of 570 1/4 - 572. How can a number line be used to solve the problem? Explain your answer in the context of the problem.

Answer 1

Answer:

429.5

Step-by-step explanation:

this answer is very helpful for you

Answer 2

Given :-

Lake Erie 2012 water levels .

Month water Level, in Feet.

January 572

April 571(3/4)

July 571(1/4)

October 570(1/4)

To Find :-

• Change of water level from january to October.

Solution :-

given that,

→ in January level of water was = 572 feet .

and ,

→ in October level of water was = 570(1/4) = (2281/4) feet.

So,

→ Change of of water level from january to October = (572/1) - (2281/4)

Taking LCM of denominator , we get 4 ,

→ (572 * 4 - 2281) /4

→ (2288 - 2281) / 4

→ (7/4)

→ 1(3/4) Feet (Ans.)

Therefore, Level of water drop by 1(3/4) feet from january to October.

Now, If you want to see solution by number line, refer to image .

(Hope it helps you.)