Answer:
90% of them are quarters.
Step-by-step explanation:
If you take 50 and multiply it by two, you get 100. But, in order to get the right number, you have to multiply 45 by two as well. 45 x 2 is 90. 90 out of 100 is 90 percent. So 90% is the answer.
I’m pretty sure the equation is 7.50x+20=9.50x+12 then you subtract the x over and now it’ll be -2x+20=12 and then you do 12 - 20 and that is -8 and then -8 divided by -2 and that is 4. so maybe x equals 4? then plug it in and now you have to check your answer so you plug in the 4 and it is 7.50(4)+20=9.50(4)+12 and then that is 50=50. I MAY BE TOTALLY WRONG. but i tried to help at least
I'm doing something right now, but sure.
PS. I may not answer fast
X = 25/4 hope this answer helps. Have a good day :)
