If Keegan has 15 nickels and quarters in his pocket, and they have a combined value of 195 cents, how many of each coin does he have?

__quarters
__nickels

7  Quarters and 4 Nickels

Step-by-step explanation:

basically, Since a Quarter is worth 25 cents and a Nickel is worth 5 cents, You can do 25x7=175 and 5x4=20 then add 175+20 and then you get 195.

Hope I could help! :)

sin x = 3/5

cos y = 3/5

Step-by-step explanation:

They are both equal in value

Step-by-step explanation:

We should identify that we need to find the length of the hypotenuse which is the third side here.

Mathematically, 3,4 and 5 are a Pythagorean triple as they form the sides of the right angled triangle. Hence, without any other needed proof , the length of the hypotenuse is 5

Sin x = opposite/hypotenuse

the opposite side to x is 3

and the hypotenuse is 5

So sin x = 3/5

Cos y = adjacent/hypotenuse

the side adjacent to y is also 3

Cos y = 3/5

The relationship they both share is that they are equal in value