Answer:
$ 20
Step-by-step explanation:
Given that,
No. of notes Joe has = 4
The total value of the notes = $ 75
From the given notes, 4 notes that can make the sum of 75 would be
$ 50 note + $ 10 + $ 10 note + $ 5
= 50 * 1 + 10 * 1 + 10 * 1 + 5 * 1
= $ 75
Thus, the note that would not be included in the total value would $20 note as if we add it either the sum would be greater or lesser with four notes in combination.
The highlighted ones i’m unsure of, the circled in red answer is the mixed fraction answer and the work in red is how i got to the mixed fraction answer, If this helps you please rate 5 stars! this was tedious
F(10)=300+35(10)
f(10)=300+350
650(10)=300+350
6500