Barbara is tiling her craft room floor with square tiles. She wants sixthtenths of the square tiles to be red. If she uses 18 red tiles how many square tiles will cover the floor ?

108 square tiles

Step-by-step explanation:

This problem is solved by means of a law of proportionality. Knowing that a yes 1/6 of the floor would be with red square tiles and that represents 18 in quantity. The entire floor is 100%, that is to say the unit, therefore applying the law of proportion would look like this:

% of floor                       Amount of square tiles

1/6 > 18

1 > X

Then X is equal to:

X = 1 * 18 / (1/6)

X = 108, therefore 108 square tiles are necessary to cover the entire floor.

Step-by-step explanation:

Below is an attachment containing the solution.

answer: ur mum is gay

5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10