There are 5 quarters and 3 dimes.
Let's illustrate it as 
Now adding 5 quarters and 5 dimes, we get
.
5/3 is not equal to 10/8 hence it no longers has the ratio of 5:3 but now has the ratio of 5:4
Answer:
Multiply a by 2, then subtract by a, then divide by 4
Step-by-step explanation:
a=(1/2)(4y+a)
2a = 4y + a
a = 4y
y = 4
Answer:
Step-by-step explanation:
![5x^2-20y^2\\=5(x^{2} -4y^2)\\=5[x^{2} -(2y)^2]\\=5(x+2y)(x-2y)](https://tex.z-dn.net/?f=5x%5E2-20y%5E2%5C%5C%3D5%28x%5E%7B2%7D%20-4y%5E2%29%5C%5C%3D5%5Bx%5E%7B2%7D%20-%282y%29%5E2%5D%5C%5C%3D5%28x%2B2y%29%28x-2y%29)
Do you know the Combination Formula? If Not it is (n!)/r!(n - r)!
I think n would equal 6, and r would equal 2. So it would be 6!/2!(4!)
I believe you can do this yourself now that I've given you an equation.