Answer:
1.
2. 15
3. 12
4. No, because if you put those values into the inequality you get
4 * 9 + 5 * 5
60 -->
-->
which is not true.
Explanation:
1. if a car costs $4, the total cost of cars is 4x
if a doll costs $5, the total cost of dolls is 5y
you have at most $60 to spend, so the amount you spend has to be less than or equal to 60.
The inequality would be
.
2. At the x-intercept y would be 0, so
4x + 5(0) = 60
4x = 60
x = 15
3. At the y-intercept, x would be 0, so
4(0) + 5y = 60
5y = 60
y = 12
4. Already explained in the answer