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A train travels at (3x + 5) miles per hour for 4 hours. Write an expression showing this. ___________________ If x = 4, how far did the train travel in four hours? _________________
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A train travels at (3x + 5) miles per hour for 4 hours. Write an expression showing this.

___________________

If x = 4, how far did the train travel in four hours? _________________

User Mobrockers
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2 Answers

4 votes
3x+5. Replace the x with a 4 and multiply 3 and 4. You’ll get 12 plus 5 and the answer well be 17.
User Bort
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3.0k points
5 votes
3x4+5=17 you just replace the x with the 4 then multiply 3 by 4 and add 5
User SimplyKiwi
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3.5k points
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