the answer is 30 because you're finding the LCD of 4/5 and 1/6 which turns them into 24/30 and 5/30
If 3mile=28 min
x mile=42 min
cross multiply
x=3/28
therefore if 3/28=1 min
then x mile= 42 min
cross multiply
42 x 3/28 =21 x 3/14
=3 x 3/1
=9
The answer is 9 miles
17, 19, 23.
Remember, prime numbers are numbers that can only be divided by 1 and itself.
11x + 12(11x + 1) = 12
11x + 132x + 12 = 12
143x = 0
x = 0
y = 11x + 1
y = 11(0) + 1
y = 1 <==