Mark has 4 times as many cars as Dan together they have 30 cars. How many cars does Mark have?
Dan has X carss.
Mark has 4 times as many cars = 4X.
Together they have 30 cars/
30 = X + 4X = 5X
X = 30/5 = 6
Dan has 6 cars.
Mark has 4X = 4 x 6 = 24 cars.
Check: 6 + 24 = 30 cars.
