Answer:
total profit gained = 20%
Step-by-step explanation:
profit = SP - CP = 18 - 15 = 3 naira
total profit percentage =
- ( profit / CP ) × 100
- 3 / 15 × 100
- 20%
hence her total percentage gain was 20%
C=d*pi
C=8.5 * 3.14=26.69
26.69in
The answer is 78
Please see the attached picture for full solution
Hope it helps
Good luck on your assignment
Hi,
For 138, there will be one block for the hundredths place. Three long tenths for 30 and eight singular units. For 217, you will have two square blocks for 200, one long tenth unit and seven singular units.
Have a great day!
Answer:
Step-by-step explanation:
Mean weigth is 3.8
standard deviation 15 =0.5
sd2 =15*(sd₁₅ )²
sd=(15*0.25)^0.5
sd=1.94
z=(3.8-4)/((0.5)/15^0.5)
z=-1.55
p=0.060571
0.060571>.05
true mean weight is less than 4 ounces
test statistic= (sample mean-mean)/((sd of sample)/n^0.5)
test statistic=(3.8-4)/((0.5)/15^0.5)
test statistic=-1.55
