Me solve this question, "you answer 16 out of 20 questions correctly on a test. your friend answers 25 out of 30 questions correctly on a different test. who has the better score? "

Step-by-step explanation:

You answer 16 out of 20 questions correctly on a test. Number of questions unanswered is

20 - 16 = 4

The percentage of questions that you answered will be number of questions answered / total number of questions × 100

It becomes

16/20 × 100 = 80%

Your friend answers 25 out of 30 questions correctly on a different test. Number of questions unanswered is 30 - 25 = 5

The percentage of questions that your answered will be number of questions answered / total number of questions × 100

It becomes

25/30 × 100 = 67.67%

Comparing the percentages, your percentage was higher. It means that you had the better score.

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