Question

8. The Atlantic Ocean is sinking about 10 cm every 100 years. Write a multiplication expression with integers
that models how much the Atlantic Ocean will sink in 300 years. How many centimetres will it sink during that time​

Answer 1

Given :   The Atlantic Ocean is sinking about 10 cm every 100 years

To find : Write a multiplication expression

How many centimetres will it sink in 300 Years

Solution:

The Atlantic Ocean is sinking about 10 cm every 100 years.

The Atlantic Ocean  sinking  in 100 Years  =  10 cm

The Atlantic Ocean   sinking  in 1 Year   =  10/100 = (1/10) cm

The Atlantic Ocean   sinking  in 300 Year   = 300 * (1/10)   = 30 cm

The Atlantic Ocean will sink 30 cm in 300 Years

The Atlantic Ocean   sinking  in n Year   = n *   (1/10) cm

= (n/10) cm

The Atlantic Ocean will sink 30 cm in 300 Years

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Answer 2

Answer:

Sinking length of the Atlantic Ocean = 10 cm in 100 years

Solution:

-10÷100 = -0.1 ×300 = -30

The Atlantic Ocean will sink -30 cm in 300 years.