Question

The ocean rises and falls each day due to tides. The Bay of Fundy in Canada has some of the highest tides n the world. It’s tidewater rises about 53.478 feet and falls the same amount afterwards, twice a day. A. Write an expression that can be used to find the total feet the tide rises and falls each day. B. Write an express that can be used to find the total feet the tide rises and falls over a one week period. C. How many total feet does the tide rise and fall over a one week period?

Answer 1

Answer:)

A.) In one day, the tide rises twice and falls twice. Each time it rises and falls, it rises by an amount R = 53.478 feet, and it falls by an amount F = 53.478 feet. This means that for one cycle of rising and falling, it rises and falls by an amount equal to H = R + F = 106.956 ft. Further, as it completes two cycles in one day, it rises and falls a total amount equal to = 2 * H = 213.912 ft in one day.

B.) From the setup of the problem as before, we see that :

• Total feet risen in one day = 2 * R which means total feet risen in a week = 7 * 2 * R
• Total feet fallen in one day = 2 * F which means total feet fallen in a week = 7 * 2 * F

C.) The total feet that the tide rises and falls over a one week period is then :