Shuping and joshua had the same amount of money. Joshua paid $9.10 for a bag and had $16.25 left. This means that the amount of money that Joshua had initially was
16.25 + 9.1 = $25.35
Shuping bought a pen and had $19.60 left. Since they have the same amount of money initially, it means that
Let the distance of the race be d miles. We can now write the equation: which when solved, gives the value of as 4.2 miles. The time to walk 4.2 miles at 3 mph is 4.2/3 = 1.4 hours.