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A bus averages 6 miles per hour faster than a trolley. If the bus travels 90 miles in the same time it takes the trolley to travel 75 miles, then what is the

 what is the speed of each?

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David W. | I'll help you understand math!I'll help you understand math!
4.9 4.9 (63 lesson ratings) (63)
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90/(t + 6) = 75/t
 
90t = 75t + 450
15t = 450
t = 30 mph
 
b = 30 + 6 = 36 mph
 
90/36 = 75/30
2700 = 2700
0 = 0
Check!
 
 
Mark M. | Mathematics Teacher - NCLB Highly QualifiedMathematics Teacher - NCLB Highly Qualif...
4.9 4.9 (178 lesson ratings) (178)
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s represents the speed of the trolley
s + 6 represents the speed of the bus
 
60/s = 75/(s + 6)
 
Can you solve for s and answer?