Question

Need help with some khan academy stuff

Answer 1

2.2 % per minute

35 minutes

Explanation:

(0,23%) and (30, 89%)

We can find the slope

m = ( y2-y1)/(x2-x1)

= (89-23)/(30-0)

66/30

=2.2 % per minute

To get to full change we need 100-23 = 77 %

77% * 1 minute/ 2.2 % =35 minutes