Answer:
3 complete shifts of 3/4 hour and 1 one-third of the 3/4 hour shift.
Step-by-step explanation:
Total work hours = 2.5 hours
Each shift = 0.75 hr
Number of shifts = Total work hours / Each shift
= 2.5 / 0.75
= 3.33
He worked for 3 complete shifts of 3/4 hour and
1 one-third of the 3/4 hour shift.
Answer:
Step-by-step explanation:
An = 54 + 3(n-1)
n = 1 ; A1 = 54 + 3*(1-1) = 54 + 3*0 = 54 +0 = 54
n =2 ; A2 = 54 + 3*(2-1) = 54 + 3*1 = 54 + 3 = 57
n =3 ; A3 = 54 + 3*(3-1) = 54 + 3*2 = 54 + 6 = 60
n =4 ; A4 = 54 + 3*(4-1) = 54 + 3*3 = 54 + 9 = 63
Answering from phone so this will be a bit messy.
a
b=a+1
c=b+1=a+2
2a=b+20
Therefore:
2a=a+1+20
a=21,b=22,c=23
Answer:
11/14
Step-by-step explanation:
(P of blue marble) + (P of even numbered) - (P blue and even) =
8/14 + 7/14 - 4/14 = 11/14
A protons and electrons is the correct one