Question

The inequality below shows the relationship between Mario’s biking goal in miles and how many miles he rides in an hour. Let t represent the amount of time in hours.

8t≥20
Solve the inequality to find t, the amount of time in hours he should bike in order to meet or exceed his goal of 20 miles. Graph the solution on the number line below.

Answer 1

t = 7 8.68

explanation :

Solve for t, 2/20=t/50, 220=t50 2 20 = t 50. 68056, Solve for t, 2/3=t-4/9, 23=t−49 2 3 = t - 4 9. 68057, Solve for t, 2/3t=7/8, 23t=78 2 3 t = 7 8.68

Answer 2

t = 7 8.68

Explanation:

Solve for t, 2/20=t/50, 220=t50 2 20 = t 50. 68056, Solve for t, 2/3=t-4/9, 23=t−49 2 3 = t - 4 9. 68057, Solve for t, 2/3t=7/8, 23t=78 2 3 t = 7 8.68