Question 837222
let x equal the number of yards of blue ribbons.
let y equal the number of yards of gold ribbons.
the cost for blue ribbons is equal to 1.99 * x.
the cost for gold ribbons is equal to 3.50 * y.
since dana can spend 30 dollars at most, the equation you are looking for is:
1.99 * x + 3.50 * y <= 30
the restrictions are that the value of x and the value of y must be greater than or equal to 0.
this can be defined as:
x >= 0
y >= 0
or as:
x,y >= 0