Kittens weigh about 100 grams when born and gain 7 to 15 grams per day. If a kitten weighed 100 grams at birth and gained 8 pounds per day, in how many days will the kitten triple it's weight?

How do I write this as an equation, and how do I find the answer?

Question

Kittens weigh about 100 grams when born and gain 7 to 15 grams per day. If  a kitten weighed 100 grams at birth and gained 8 pounds per day, in how many days will the kitten triple it's weight? 

How do I write this as an equation, and how do I find the answer?

anonymous · Answer

Hmmm... make it into an equation.

anonymous · Answer

how would i do that?

anonymous · Answer

8x25=200
200+100=300
100x3=300
It will take 25 days for the cat to reach triple its original weight.

anonymous · Answer

can you explain this, please?

anonymous · Answer

i need it in an algebraic equation, with a variable

anonymous · Answer

300=100+8x

anonymous · Answer

thank you so much :)

anonymous · Answer

Now to further explain.

300=100+8x (I have to get x alone)
300-100=100-100+8x (i move the 100 over to the other side)
200=8x (now i divide both sides by 8)
200/8=8/8x (the 2 8's cancel and 8 divides evenly into 200)
25=x

anonymous · Answer

you... are... SO SMART!!!!! and thanks to you, now i'll be smart, too. thanks again. :) :)

anonymous · Answer

Good luck and you're welcome

anonymous · Answer

Sorry, Pika. So many people >.<

anonymous · Answer

its ok :) PreCalTroubles solved my troubles :) thanks anyway :)