A tectonic plate near Niihau, an island in Hawaii, grows at an average rate of 11 cm/year. If the rate of plate expansion double

Question

4 years ago

7

A tectonic plate near Niihau, an island in Hawaii, grows at an average rate of 11 cm/year. If the rate of plate expansion double

s, how many more centimeters will the plate grow in 3 years, compared to the present rate?
A) 30 cm more

B) 33 cm more

C) 66 cm more

D) 122 cm more

Physics

2 answers:

Nitella [24] · Answer 1 · 2021-11-13T03:51:41+03:00

Answer: Option C: 66 cm more

Explanation: We know that the actual rate is 11 cm per year, if this rate is doubled, then the new rate is 11*2 cm per year = 22cm per year.

Now, if in one year the plate grows 22 cm, then in 3 years the plate will grow 3 times 22 cm, this is:

22cm*3 = 66cm

Then the right answer is C, 66 cm more.

RideAnS [48] · Answer 2 · 2021-11-13T01:24:12+03:00

RideAnS [48]4 years ago

5 0

Answer:

C, 66

Explanation:

11*2 is 22 and 22*3 is 66