A bag has 3 red marbles, 2 blue, 1 yellow and 4 green what is the probability of drawing a red or green

0.7

Step-by-step explanation:

Total marbles: 10

P(red or green) = 7/10 = 0.7

7/10

Step-by-step explanation:

3 red marbles, 2 blue, 1 yellow and 4 green = 10 marbles

red or green = 3+4 = 7 marbles

P(red or green) = red or green / total

                          = 7/10

use an equation of ratios to determine the amount of gas needed to fill the tank.

    0.2             0.8

  =    

288.75             x

                                                              231 gal

so, 0.2x = (0.8)(288.75 gal), and x = = 1155 gal.

                                                                0.2

it would take 1155 gal. to fill the tank.

the cost would be

1155 gal         $3

* = $3465   (answer)

      1           1 gal

hope this you