Ask your own question, for FREE!
Mathematics 25 Online
OpenStudy (anonymous):

A penguin can dive 48 meters below the surface of the water to reach a fish. It dives 2% of the total depth every 1 second. What is the total depth of the penguin after 4 seconds?

OpenStudy (anonymous):

−3.84 meters −0.96 meters −1.92 meters −2.88 meters

OpenStudy (anonymous):

How would you start this problem?

OpenStudy (anonymous):

you multiply

OpenStudy (anonymous):

So if it is 4 seconds it has diven down into the water, what percent of his total distance has he gone?

OpenStudy (anonymous):

im sorry, im really not good at this. I don't know.

OpenStudy (anonymous):

Multiply 4 times 2.

OpenStudy (anonymous):

8

OpenStudy (anonymous):

Ok. That is 8% of his depth. To get 8% of 48 meters, what would you do?

OpenStudy (anonymous):

you divide 8 into 48

OpenStudy (anonymous):

No.. Try again.

OpenStudy (anonymous):

What is 8% in decimal form?

OpenStudy (anonymous):

0.8

OpenStudy (anonymous):

That is 80%.

OpenStudy (anonymous):

I have no idea, this is why I hate virtual school.

OpenStudy (anonymous):

So what would 8% be?

OpenStudy (anonymous):

Just move the decimal place once to the left.

OpenStudy (anonymous):

What do you get?

OpenStudy (anonymous):

88%

OpenStudy (anonymous):

No... You had .8 move the decimal place to the left. Not the right.

OpenStudy (anonymous):

84.

OpenStudy (anonymous):

No. .08 You move the decimal (The DOT) to the left one place, and put a 0 in that place. .08 Is 8%.

OpenStudy (anonymous):

Do you get that now?

OpenStudy (anonymous):

yes.

OpenStudy (welshfella):

so the answer is 0.08 * 48

OpenStudy (anonymous):

Ok. To get the answer now you multiply .08 by 48. Add a negative sign to that answer because the penguin is going down below the surface.

OpenStudy (anonymous):

Do you get how we did that? :)

OpenStudy (anonymous):

3.84 and yes and thankyou.

OpenStudy (anonymous):

No problem. If you want a fan and need some help I am here :)

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!