Let the number of hours = X
Multiply the speed of each train by the number of hours (x) and add them together to equal the total miles:
75x + 95x = 238
Simplify:
170x = 238
Divide both sides by 170:
x = 238/170
x = 1.4 hours.
Check:
75 x 1.4 = 105 miles
95 x 1.4 = 133 miles
105 + 133 = 238 miles
It will take 1.4 hours ( 1 hour and 24 minutes).
Answer:
a number. 5. b number. 7 fourth one. c number. 1. d number 0
Step-by-step explanation:
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Answer:
9x-5
Step-by-step explanation:
(4x-6)+(5x+1)
remove parentheses
4x-6+5x+1
collect like terms
9x-5
Answer:
(x-5)(x+2)
Step-by-step explanation:
Hello there!
Your expression there has a highest power of 
, so there will be two constants that you need to find.
Your last term is -10, so the constants will have a product of -10. Also your middle term is -3x, so the terms will add up to -3
-5 and 2 fit the mold.
Have a great day!
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