Lin's father is paying for a $20 meal. He has a 15% off coupon for the meal. How much will he pay?

$17

Step-by-step explanation:

x/20=15/100 then solve for x

Lin's father will pay $17.

Step-by-step explanation:

15 ÷ 100 = 0.15.

0.15 x $20 = $3.

$20 - $3 = $17.

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