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OpenStudy (anonymous):
Ali and Jake went on a cross-county trip. They took a train part of the way, and took a bus the rest of the way. They traveled a total of 1328 kilometers, riding on the train 254, more kilometers than the bus.
x=kilometer traveled by bu
y= kilometer traveled by train
how many kilometers did they travel by train?
OpenStudy (eyust707):
the total amount was 1328.
and they used both train and bus
That means:
the amount by train + the amount by bus = total amount
OpenStudy (anonymous):
Ok
OpenStudy (eyust707):
or using their symbols and values:
x + y = 1328
OpenStudy (eyust707):
but wait they gave us one more piece of info
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OpenStudy (eyust707):
the amount by train is 254
OpenStudy (eyust707):
y = 254
OpenStudy (eyust707):
x + 254 = 1328
OpenStudy (eyust707):
now just solve for x
OpenStudy (anonymous):
=1074
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OpenStudy (anonymous):
i really suck in this
OpenStudy (eyust707):
yep
OpenStudy (anonymous):
thank you
OpenStudy (eyust707):
oh wait a minute
OpenStudy (eyust707):
i misread it
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OpenStudy (eyust707):
"riding on the train 254, more kilometers than the bus."
OpenStudy (eyust707):
that means:
train is 254 more than bus
y = 254 + x
OpenStudy (eyust707):
now we have two equations:
x + y = 1328
y = 254 + x
OpenStudy (eyust707):
id substitue what y is equal to into the first equation, solve for x , then solve for y