Answer:
5.49779
Step-by-step explanation:
Answer:
B: 20 minutes
Step-by-step explanation:
Because it comes every 30 minutes and he is 10 minutes late we do
30-10=20
Therefore he has to wait 20 minutes for the next train.
The proportion is 4:7 compared to the proportion ?:42. The way I prefer to do this is 7÷4=1.75. 1.75 is the difference between the smaller and larger rectangles. Then take 42÷1.75=24. The perimeter of the smaller rectangle is D. 24.