Jack ran 3.5 miles during each of his track practices. He also ran 6.5 miles on his own. So far, he has run a total of 13.5 miles. How many track practices must he have attended? Write and solve an equation to find the answer. track practices

6 hours 48 min

step-by-step explanation:

68÷5=13.6

13.6×30=408min=6 hours 48 min.

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a variable is any characteristics, number, or quantity that can be measured or counted. a variable may also be called a data item. hope i !

a=24; b=12

step-by-step explanation:

a/b=2: 1

a=2b

36/(1+2)=12

b=12

a=24

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