Question

red and gray bricks were used to build a decorative wall. the (number of red bricks)/(number of gray bricks) was 5/2. There was 175 bricks used in all how many gray bricks were used?

Answer 1

Let's assume that the number of red bricks used is 5x and the number of gray bricks used is 2x.

Therefore, 5x + 2x = 175 (since there are 175 bricks used in total)
Simplifying the equation, we get 7x = 175
Dividing both sides of the equation by 7, we get x = 25.

So, the number of gray bricks used is 2x = 2 * 25 = 50.

Therefore, 50 gray bricks were used.