To make a nice casserole dish, flour and water must be mixed in a ratio of 2:5. If Mr. FlappyBird used 8 cups of flour, how many cups of water should he use?

Question

NICE CASSEROLE = FLOUR AND WATER MIXED IN 2:5 RATIO

MR.FLAPPYBIRD USED 8 CUPS OF FLOUR, HOW MANY CUPS OF WATER SHOULD HE USE?

Answer 1

flour: water = 2/5 = 8/x where x = # cups of flour.  Solve for x.