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
Answers
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:
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.