Answer:
y=-1/4x-4
Step-by-step explanation:
I believe by the first equation they are referring two a representation of the total amount of money made up by the two types of coins. I found this to be 0.05x + 0.10y = 3.50
In my work I solved for the amount of each coin- I assume this is what the final step of your problem entails. If you need any help understanding/ I misinterpreted something please feel free to comment and ask :)
#5c coins or x= 36
#10c coins or y= 17
You ca go to tiger math and put in any equation and it will give you the answer to any of them.
Let if you earn $100 per hour a raise of 2.5% means you will get $102.5.
i.e 102.5% of earlier.
in case of $6, it will be its 102.5%, = 102.5*6/100 = $6.15 per hour.