What is the value of x + 3y + z if x equals 3 y equals 3 + z equals -4

x + 3y + z = 3 + 3 * 3 + -4

Your answer will be 8.

If this answer is incorrect, then i am sorry.

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

78.59 is the mean

step-by-step explanation: