ACTIVITY 1.2
Creating a Model to Solve
an Equation
tane the
quantities
at are
El Capitan is a 3000-foot vertical rock formation in Yosemite
National Park in California. The granite cliff is one of the most
popular challenges for experienced rock climbers. On July 3, 2008,
Hans Florine and Yuji Hirayama scaled El Capitan in a record time of
2 hours 43 minutes and 33 seconds.
problem
sation?
1. On average, about how fast in feet per minute did the record
holders climb?

answer: i'm not sure

step-by-step explanation:

unless you made a typo, the answers are both a and c.

step-by-step explanation:

1.5/3 is .5 whereas 3/9 is .3333333 not proportional

22/33 is .66666 and 4/6 is also .66666 proportional

2/4 is .5 whereas 142/213 is .66666 not proportional

14/7 is 2 and 7/3.5 is also 2 proportional

you could've also checked it by doing this simple division:

if the larger fraction divides with the smaller fraction to equal 1, it is proportional. so let me show you what i mean:

when i divide 22/33 by 4/6 i get 1, so we know it is proportional, and it is the same with 14/7 and 7/3.5. now if i divide 3/9 by 1.5/3 i get .66666 so therefore we know it is not proportional.

there are many ways to do this so i wanted to show you some possible ways.