Question

Nicole has x dimes and y nickels. She has at least 15 coins worth a maximum of $1

Answer 1

Answer:

Step-by-step explanation:

$X + Y \geq 15\\\\10X + 5Y \leq 100$

we want to put it into terms of Y

$y \geq 15 - x\\and\\5y \leq 100 - 10x\\y \leq 20 - 2x$

the graph is in the attached image. Any point in the shaded overlap region where x is greater than or equal to 0 (assuming you cannot have negative coins) works, e.g. (2, 14)