Zer - 25$ Soil- 6.25 Jamie is starting a garden. She buys 3 bags of potting soil and 4 bags of fertilizer. In all she spent 125$
. After she used all of the soil and fertilizer, she realized that it wasn't enough for her garden. She goes back to the store and buys 4 more bags of potting soil and 2 more bags of fertilizer. She spent 75$ F represents fertilizer S represents soil 3s + 4f = 125 4s + 2f = 75
Well, 60 (minutes in an hour) divided by 12 (from the problem) is 5, so you have to multiply that 5 by the 5 from the problem to find that the train is going 25 (5*5) mph. Just double this for two hours, and you result in 50!