Mathematics OpenStudy (anonymous):

Two boats leave a port at the same time, one going north and other traveling south. The northbound boat travles 16 mph faster than the southbound boat. If the southbound boat is traveling at 47 mph, how long will it be before they are 1430 miles apart? OpenStudy (anonymous):

r u in geometry OpenStudy (anonymous):

No i am im in elementry algerbra OpenStudy (anonymous):

can you help me with this, its a little confusing OpenStudy (anonymous):

i know i have tried to solve it many times let me keep trying OpenStudy (anonymous):

r u still there OpenStudy (anonymous):

hello? OpenStudy (anonymous): OpenStudy (anonymous):

Yeah I am here sorry, How did you do it? OpenStudy (anonymous):

okay so the first thing you want to do is compare the two and make a relationship OpenStudy (anonymous):

there are two things that the boats have in common the the rate unit and the distance right OpenStudy (anonymous):

Right! OpenStudy (anonymous):

so the formula that ties speed, time, and distance is d=st OpenStudy (anonymous):

right OpenStudy (anonymous):

distance = speed times time OpenStudy (anonymous):

yeah, I forgot to put the formula OpenStudy (anonymous):

time can also be represented as a rate in this case we have mph OpenStudy (anonymous):

Okay so would you now set the equation up OpenStudy (anonymous):

therefore it would be appropriate to say distance= speed times rate OpenStudy (anonymous):

so one boat is going x mph the other boat is going 16+x OpenStudy (anonymous):

x=47 and 16+47 is 63 OpenStudy (anonymous):

the only thing that ties these two boats together is the distance so we can assume the equation will be equal to 1430 or the distance OpenStudy (anonymous):

right OpenStudy (anonymous):

Yes that true! OpenStudy (anonymous):

the other side would be related because it shares a common unit the rate or mph OpenStudy (anonymous):

therefore 1430=rt+rt OpenStudy (anonymous):

the rates are 63 mph and 47 mph OpenStudy (anonymous):

t = time OpenStudy (anonymous):

so the final equation looks like 1430=63t+ 47t OpenStudy (anonymous):

1430=110t OpenStudy (anonymous):

1430/110=t OpenStudy (anonymous):

Its would be 13! OpenStudy (anonymous):

Thanks Dude! OpenStudy (anonymous):

it would be 13 hours OpenStudy (anonymous):

yes, your welcome if you have any other questions i can help OpenStudy (anonymous):

Okay Well that was my last problem though But if I have anymore question I will ask away!

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