Question

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A researcher found that the sea level rose 1 5 of a centimeter in 2 3 of a year. what rate did the sea level rise?

a. 2 5 centimeter per year
b. 3 5 centimeter per year
c. 2 15 centimeter per year
d. 3 10 centimeter per year

Answer 1

1/5÷2/3
to divide by a fraction flip the second and multiply
=1/5×3/2
multiply tops by tops and bottoms by bottoms
=3/10
so 3/10 cm per year