Collin noticed that various combinations of nickels and dimes could add up to $0.65. let x equal the number of nickels let y equal the number of dimes what is the domain where y is a function of x and the total value is $0.65?

Defining variables we have:

y = the number of dimes

x = the number of nickels

0.05x + 0.1y = 0.65

We clear y:

y = ( - 0.05x + 0.65) / (0.1)

y = - 0.5x + 6.5

The domain will be:

(0, 13)

Answer:

the domain where and is a function of x is:

(0, 13)

and the total value is $ 0.65 when

x = 1

y = 6