Answer:
see the explanation
Explanation:
Let
x ---> the number of minutes you can spend on each of the other 4 subjects
we know that
The number of minutes you spend on math plus the number of minutes you can spend on each of the other 4 subjects must be less than or equal to 3 hours
Remember that
3 hours=3(60)=180 minutes
so
The inequality that represent this situation is
![45+4x\leq 180](https://img.qammunity.org/2021/formulas/mathematics/middle-school/8j18d9554tmt6vrsq2uhcli9la89lnxl3t.png)
solve for x
Subtract 45 both sides
![4x\leq 180-45](https://img.qammunity.org/2021/formulas/mathematics/middle-school/ov0g2dk9r9oxvdld3c2h01v7gbn5dwday5.png)
![4x\leq 135](https://img.qammunity.org/2021/formulas/mathematics/middle-school/z4mpqdu40hgeefreanar5uv1cbe9977z8o.png)
Divide by 4 both sides
![x\leq 33.75\ min](https://img.qammunity.org/2021/formulas/mathematics/middle-school/3zassy36ngdg93q1j82j22lwpqn55t1zo6.png)
therefore
The maximum number of minutes you can spend on each of the other 4 subjects must be less than or equal to 33.75 minutes