Use the nearest place value, how many tenths are in 5?

Well, it depends on what the tenth is. A tenth is a place value, not a number. 0.1, goes in 5 50 times. 0.2 goes in 25 times. 0.3 goes in 16.667 times. 0.4 goes in 12.5 times. 0.5 goes in 10 times, 0.6 goes in 8.33333333 ... (Repeating) 0.7 goes in 7.142 times. 0.8 goes in 6.25 times. 0.9 goes in 5.556.