Joey is going on a trip across the country and he needs to g

Joey is going on a trip across the country and he needs to go off least 400 miles today. The average speed he can go on the freeway is 60 mph. Choose 3 amounts of time that would work for this situation. Write an inequality that shows that he went at least 400 miles going 60 miles per hour. Let h represent the number of hours he spent in the car. Solve the inequality you wrote. Graph your result from C on a number line. Are the 3 times you chose in Part A in the solution set shown in Part D?

Solution

A) any tim which gives 60*h > 400 can be taken

So, h = 7hrs , 8 hrs or 6.67 hrs

B) 60h > = 60

C) h >= 6(2/3)

D) Representation shown is correct

Yes the three times choosen are part of the number line