Acity park commission received a donation of playground equipment from a parents' organization. the area of the
playground needs to be 256 square yards for the children to use it safely. the playground will be rectangular.
the city will also put a fence around the playground. the perimeter, p, of the fence includes the gates. to save money,
the city wants the least perimeter of fencing for the area of 256 square yards.
jovana was trying to find a formula for that perimeter with one side 8 yards longer than the other side using the area. in
which step did she make a mistake?
step 1: a=x( x+8 ) - 256
step 2: 256/x = x +8
step 3: p=2[ x+( x+8 ) ]
step 4: 1/2p=x+( x+8)
step 5: 1/2p=x+ 256/x
step 6: 1/2p-x=256/x
step 7: x( 1/2p-1 ) - 256
explain her mistake. what is the correct formula?

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

ranks (& how to earn them):

-beginner (needs at least 0 points & 0 brainliest answers)

- hand (needs at least 100 points & 0 brainliest answers)

-ambitious   (needs at least 250 points & 0 brainliest answers)

-virtuoso (needs at least 500 points & 5 brainliest answers)

-expert   (needs at least 1,000 points & 10 brainliest answers)

-ace (needs at least 3,000 points & 15 brainliest answers)

-genius   (needs at least 15,000 points & 50 brainliest answers)

how to award brainliest:

you must wait until 2 people answer to award brainliest. i'm pretty sure that it should be next to the "" and "comments" buttons.