Question 1109111
<pre>
                   SPEED        TIME          DISTANCE

first part           60           x             60x

rest of trip         70           2x            70*2x

TOTAL                                           250
</pre>

{{{60x+140x=250}}}

{{{20x=25}}}

{{{4x=5}}}

{{{x=1&1/4}}}-------{{{one}}}{{{hour}}}{{{and}}}{{{fifteen}}}{{{minutes}}}

2 and a half hours at 70 mph.


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60 mph for 75 miles
and
70 mph for 175 miles
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