frank was moving twice as fast as anna on the running track. between anna and frank, they ran 36 miles. how many miles did anna run and how many miles did frank run?

Answer 1

f = 2a

a + f = 36

a + 2a = 36

3a = 36

3a/3 = 36/3

a = 12

f = 2(12)

f = 24