Thursday

April 24, 2014

April 24, 2014

Posted by **A Canadian** on Wednesday, January 23, 2013 at 7:44pm.

The answer is 9 weeks.

This is what I did, and it's clearly wrong:

tn = 7 + (n-1)13

tn = 7 + 13n - 13

tn = 13n - 6

100 = 13n - 6

100 + 6 = 13n

106/13 = n

I get a crazy decimal (8.1538....) which shouldn't be the answer...

What am I doing wrong, and how do you properly answer this question?

Thanks very much in advance!

**Related Questions**

math - a student plants a seed, after the speed sprouts the student monitors the...

Calculus - At time t = 0, a seed is planted. After t weeks, the height of the ...

Physics - A plant falls from the windowsill of an apartment in a very tall ...

Math - Allie's plant has a height of 6 meters. Rajon's plant grows 3/10 meters ...

math - If I plant a 7 foot tall tree. The height (h) of the tree, in feet, after...

slope(using intercepts) - a bamboo plant is growing 1 foot per day. when you ...

math - Cells ina certain plant can triple in number every 15 minutes.How many ...

Math - The height of a plant after each of the first three weeks was 7mm, 20mm, ...

Math - The height of a plant after each of the first three weeks was 7mm, 20mm...

ENEGRY COSTS - I need to know how much it would cost to build the following ...