Answer: 7
Step-by-step explanation:
An inequality to model this would be
7x + 8y ≥ 336.
We multiply the number of minutes running, x, by the number of calories burned each minute by running, 7. We multiply the number of minutes swimming, y, by the number of calories burned each minute by swimming, 8. Adding these together, it needs to be greater than or equal to 336, since she wants to burn at least that many calories.
The linear inequality for x is x ≥ 1/2-y/4
The linear inequality for y is y ≥ 2-4x
Answer:
x=1.6 and x=13.4
Step-by-step explanation:
First we must bring -3x over to the left side by addin git the both sides
Enter them into a calculator (most significant digit first), pressing the "+" key between them and the "=" key after the last one.
