To determine how much medicine Matthew has left, let's follow a detailed, step-by-step process.
1. Initial Amount:
Matthew starts with an 8 fluid ounce bottle of medicine.
2. Medicine Taken on Thursday:
On Thursday, Matthew took [tex]\( 1 \frac{1}{4} \)[/tex] fluid ounces. We need to convert this mixed fraction to an improper fraction or a decimal:
[tex]\[
1 \frac{1}{4} = 1 + \frac{1}{4} = 1.25 \text{ fluid ounces}
\][/tex]
3. Medicine Taken on Friday:
On Friday, Matthew took [tex]\( 2 \frac{1}{2} \)[/tex] fluid ounces. We also convert this mixed fraction to an improper fraction or a decimal:
[tex]\[
2 \frac{1}{2} = 2 + \frac{1}{2} = 2.5 \text{ fluid ounces}
\][/tex]
4. Total Medicine Taken:
Next, we add the amounts taken on Thursday and Friday to find the total amount of medicine taken:
[tex]\[
\text{Total taken} = 1.25 + 2.5 = 3.75 \text{ fluid ounces}
\][/tex]
5. Medicine Left:
To find out how much medicine is left, we subtract the total amount taken from the initial amount:
[tex]\[
\text{Medicine Left} = 8 - 3.75 = 4.25 \text{ fluid ounces}
\][/tex]
Thus, Matthew has [tex]\( \boxed{4.25} \)[/tex] fluid ounces of medicine left.
