2x+38=50
2x+38-38=50 -38
2x =12
2x/2 =12/2
x=6
With fractions its very easy to get 1 as a whole numer (Which is what were trying to find. ONE miles o we know how much is per hour (one hour)). All you need to do is multiply the 2/3 hour by 3/2. The numers switched. You do this with both variables, the 3/5 miles and the 2/3 hour. After this the hour variable should have turned into a 1 if done correctly. Then we multilly the miles variable by 3/2. when done correctly we get the answer of 6 9/10 miles.
After you've done this, you then know your answer. every 1 hour Izzy runs 6 9/10 miles.
Another way of saying this is Izzy runs 6.9 miles an hour or 6.9mph.
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