Zoey is covering a 14-inch-square board with 1-inch-square tiles. she uses gray tiles to make three 3-in. by 3-in. squares on the board. she covers the rest of the board with white tiles.

how many more white tiles than gray tiles will zoey use?

Step-by-step explanation:

step 1

Find the total tiles in the square board

The total area of the square board is equal to

Remember that each tile is 1-inch-square

so

by proportion

The total tiles is equal to

step 2

Find the number of gray tiles in the square board

The total area of gray tiles in the square board is equal to

Remember that each tile is 1-inch-square

so

by proportion

The total gray tiles is equal to

step 3

Find the number of white tiles in the square board

Subtract the number of gray tiles from the total number of tiles

step 4

Find out how more white tiles than gray tiles will Zoey use

Subtract the number of gray tiles from the number of white tiles

1.5%

step-by-step explanation: