Enter the ratio as a fraction in lowest terms

15 minutes to 50 minutes

3 minutes to 10 minutes

Step-by-step explanation:

15 : 50. Both can be divided by 5

3 : 10

the answer to your question is: 20 units

step-by-step explanation:

data

ab = 3x - 1

bc = x + 3

ac = 4x

perimeter = 42

process

42 = 3x -1 + x + 3 + 4x

42 = 8x + 2

42 - 2 = 8x

40 = 8x

x = 40/8

x = 5

then

ac = 4x = 4(5) = 20 units