We did this same kind of problem in school. All we did was divide the those 2 numbers to figure out the unit price. So, 20/5 = 4 $ per CD.
0.85 is equal to 6/7 because you divide six by seven....Hope this helped.
Answer:
A) R = P/I²
Step-by-step explanation:
I = √P/R
Square each side
I^2 = (√P/R)^2
I^2 = P/R
Multiply each side by R
I^2R =P/R * R
I^2R = P
Divide by I^2
I^2R / I^2 = P/ I^2
R = P/ I^2
Answer:
common denominator is 40
Step-by-step explanation:8x5=40
10x4= 40
3x5=15
3x4=12
15/40 and 12/40