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itzcarol
Group Title
Wilma drove at an average speed of 60mph from her home in City A to visit her sister in City B.
She stayed in City B 25 hours, and on the trip back averaged 40mph. She returned home 42hours after leaving.
We have to determine how many miles x is it from City A to City B.
1. In terms of x, express Wilma's driving time from A to B
It is ____________
2. In terms of x, her return driving time is ______________
3. Her TOTAL driving time is: _____________ (trip time minus visiting time)
So answer from 1. PLUS 2. set equal to 3. is the equation:
_______________________ = ___________________.
 3 years ago
 3 years ago
itzcarol Group Title
Wilma drove at an average speed of 60mph from her home in City A to visit her sister in City B. She stayed in City B 25 hours, and on the trip back averaged 40mph. She returned home 42hours after leaving. We have to determine how many miles x is it from City A to City B. 1. In terms of x, express Wilma's driving time from A to B It is ____________ 2. In terms of x, her return driving time is ______________ 3. Her TOTAL driving time is: _____________ (trip time minus visiting time) So answer from 1. PLUS 2. set equal to 3. is the equation: _______________________ = ___________________.
 3 years ago
 3 years ago

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itzcarol Group TitleBest ResponseYou've already chosen the best response.0
This is the problem...
 3 years ago

itzcarol Group TitleBest ResponseYou've already chosen the best response.0
I'm not sure if I enter these in wrong or what.. but are you able to tell me which number goes to which blank?
 3 years ago

Annand Group TitleBest ResponseYou've already chosen the best response.0
#1 avg speed=60mph; distance=x, then time=x/60 #2 time=x/40 #3 total driving time=4225 x can be obtained by solving: x/60+x/40=4225
 3 years ago

itzcarol Group TitleBest ResponseYou've already chosen the best response.0
I've entered what annand have and it's correct.. but I'm trying to solve for the last problem now. which is solving for x
 3 years ago

Annand Group TitleBest ResponseYou've already chosen the best response.0
exactly, suzi... but isn't 42=(travel time from a to b)+ staying time+(ravel time from b to a)
 3 years ago

itzcarol Group TitleBest ResponseYou've already chosen the best response.0
so to solve X, (x/60) + (x/40) = 17 I would have to multiply 60 by each side, correct? and solve?
 3 years ago

Annand Group TitleBest ResponseYou've already chosen the best response.0
better multiply both sides with 120... its a multiple of both 40 & 60...
 3 years ago

itzcarol Group TitleBest ResponseYou've already chosen the best response.0
Are you able to show me the steps?
 3 years ago

Annand Group TitleBest ResponseYou've already chosen the best response.0
try your hand... if its difficult, i'll help...
 3 years ago

itzcarol Group TitleBest ResponseYou've already chosen the best response.0
17*120 = 2040.. right? then does that make the x/60 + x/40 = to x? since it all cancels out?
 3 years ago

Annand Group TitleBest ResponseYou've already chosen the best response.0
after multiplying with 120: 2x+3x=17*120 5x=17*120 x=17*120/5
 3 years ago

Annand Group TitleBest ResponseYou've already chosen the best response.0
you don't need to find 17*120 outrightly... 120/5=24
 3 years ago

itzcarol Group TitleBest ResponseYou've already chosen the best response.0
so how did you get 3 and 2?
 3 years ago

itzcarol Group TitleBest ResponseYou've already chosen the best response.0
Thanks a lot annand! <3
 3 years ago

Annand Group TitleBest ResponseYou've already chosen the best response.0
\[120*\left( x/60+x/40 \right)=(120*x/60)+(120*x/40)=2x+3x\]
 3 years ago
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