SOLUTION: Use the formula from Ex. 101 to determine who will feel colder: a person in Minneapolis at 10 degrees F with a 15 mph wind or a person in Chicago at 20 degrees F with a 25 mph wind

Algebra ->  Radicals -> SOLUTION: Use the formula from Ex. 101 to determine who will feel colder: a person in Minneapolis at 10 degrees F with a 15 mph wind or a person in Chicago at 20 degrees F with a 25 mph wind      Log On


   



Question 179175This question is from textbook Elementary and Intermediate Algebra
: Use the formula from Ex. 101 to determine who will feel colder: a person in Minneapolis at 10 degrees F with a 15 mph wind or a person in Chicago at 20 degrees F with a 25 mph wind.The formula for 101 is
W=91.4-(10.5+6.7(sq.rt sign)v-0.45v)(457-5t)/110. Ok now I have torn this apart and tried to use the math wording relating to setting the problem up and can"t figure it out. Could somebody help me with this?Thank you in advance. Judy
This question is from textbook Elementary and Intermediate Algebra

Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
determine who will feel colder: a person in Minneapolis at 10 degrees F with a 15 mph wind or a person in Chicago at 20 degrees F with a 25 mph wind.
The formula:
W = 91.4-%28%2810.5%2B6.7%2Asqrt%28v%29-0.45v%29%28457-5t%29%29%2F110
:
Minneapolis: t=10, v=15
W = 91.4-%28%2810.5%2B6.7%2Asqrt%2815%29-0.45%2815%29%29%28457-5%2810%29%29%29%2F110
:
W = 91.4-%28%2810.5%2B%286.7%2A3.873%29-+6.75%29%28457-50%29%29%2F110
:
W = 91.4-%28%2810.5+%2B+25.95+-+6.75%29%28407%29%29%2F110
:
W = 91.4-%28%2829.7%29%28407%29%29%2F110
:
W = 91.4-%2812087.9%29%2F110
:
W = 91.4 - 109.89
:
W = -18.5 degrees wind chill
:
:
Chicago: t=20, v=25
W = 91.4-%28%2810.5%2B6.7%2Asqrt%2825%29-0.45%2825%29%29%28457-5%2820%29%29%29%2F110
:
W = 91.4-%28%2810.5%2B%286.7%2A5%29-11.25+%29%28457-100%29%29%2F110
:
W = 91.4-%28%2810.5+%2B+33.5+-+11.25%29%28357%29%29%2F110
:
W = 91.4-%28%2832.75%29%28357%29%29%2F110
:
W = 91.4-%2811691.75%29%2F110
:
W = 91.4 - 106.29
:
W = -14.88 degrees wind chill
:
It's a little colder in Minneapolis, but I doubt if one could notice it