To find the total distance Henri hiked, we can multiply the distance he hiked each day (7/10 mile) by the number of days he hiked (9 days):
Total distance = (7/10) mile/day * 9 days
We can simplify this expression by multiplying the fractions and then multiplying by 9:
Total distance = (7/10) * 9 mile
Total distance = 63/10 mile
Therefore, the equation equivalent to the total amount hiked is:
Total distance = 63/10 mile
or, if we prefer to write the distance in decimal form:
Total distance = 6.3 miles