Barry's deck of cards contains 40 blue cards and 70 red cards max's deck of cards contains the same number of blue cards but the ratio blue cards to red cards 8:9 how many total cards do s max's deck of cards contain

Since Max's deck of cards contains the same number of blue cards as Barry's,

letting x as the number of red cards in Max's deck of card

40 / x = 8 / 9

Solving for x

360 = 8x

x = 45

There are a total of 40 + 45 = 85 cards in Barry's deck of cards