Find the value of x in the following system of equations: 2x−3y=9x=4+y

Matilda and kathryn went on different road trips over spring break. the equation below represents the number of miles matilda drove in x hours. y = 60xthe table below shows the number of miles kathryn drove in x hours. time(in hours)distance(in miles)114228342456who drove at a greater speed? a. matilda drove at a greater speed. b. matilda and kathryn drove at the same speed. c. kathryn drove at a greater speed. d.there is not enough information to determine their speeds

Bruce is getting materials for a chemistry experiment his teacher gives him a container that has 0.25 liter of liquid in it. bruce need to use 0.4 of this liquid for the experiment. how much liquid will bruce use?

Mr and mrs smith buy tickets for themselves and their four children. the cost of an adult ticket is ? 6 more than the adult ticket. the total cost of the six tickets is ? 40.50 work out the cost of an adult ticket. in your working let c be the cost of the child ticket and a be the cost of the adult ticket.