Answer:
m=33
Step-by-step explanation:
12.95 + (0.25 x m)= 21.20
12.95 + 0.25m= 21.20
0.25m= 21.20-12.95
0.25m=8.25
Divide both side by 0.25
0.25m/0.25=8.25/0.25
m=33
The answer is 10 nickels and 13 dimes.
Since 10*5=50
and 13*10=130
They both add you to 180
Answer: The sample size would be needed = 385
Step-by-step explanation:
Let p be the prior population proportion.
Margin of error = E
When not estimate of p is given , the formula to calculate the minimum sample size <em>n</em> = , where z* = critical value for given confidence interval.
Here z* for 95% confidence level is 1.96.
E=5%=0.05
Then
Hence, the sample size would be needed = 385
Answer:
See below
Step-by-step explanation:
3x-429 + x/4 = 130 shows x = 172
QSN = 3x -429 = 87 degrees
HSX = 87 degrees
HSQ = 180 -87 = 93 degrees
XSN = x/4 = 43
PSN = 93 - 43 = 50