.87 is correct you can always check your work with an online calculator. :)
x/110 = (320-x)/90
<span> Cross multiply</span>
90x = 35200-110x
200x=35200
X = 35200/200 = 176 (distance traveled by train going 110 mph
176/110 = 1.6 hours = 1 hour and 36 minutes
Check: 110*1.6 = 176, 90*1.6 = 144
176+144 = 320
it will take 1.6 hours ( 1 hour 36 minutes) for the trains to meet
Domain is all real numbers.
Range is all real numbers such that y is greater than -49/12
You just add both of the powers , so 6-3 is 3
the answer is 5^3
If possible is to impossible then <u>certain</u> is to uncertain..
