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<span>Let’s assume the number of problems as P
Student did his homework = (3/5) P + 8
Father did the homework = (1/5) P + 7
So the sum of the both equations is equal to P
=> (3/5) P + 8 + (1/5) P + 7 = P
=> (4/5) P + 15 = P
=> 4P + 75 = 5P
=> P = 75
Problems they solve together are 75 problems.</span>
The answer is b. Hope this helped
I = Prt
To find out what r is, you'll need to move P and t to the other side.
To get rid of multiplication, you divide.
I/Pt= Prt/Pt
Answer: I/Pt= r
Hope this helps! Let me know if you have any questions! :)
Answer:67.1875%
Step-by-step explanation:
Convert ratio into fraction 86 / 128
