5x+x=300
6x=300
x=50
5(50)=250 (Rose)
x=50(John)
Rose has 250 stickers and John has 50, therefore Rose has 200 more stickers than John.
Step-by-step explanation:
a. The point estimate is the mean, 47 days.
b. The margin of error is the critical value times the standard error.
At 31 degrees of freedom and 98% confidence, t = 2.453.
The margin of error is therefore:
MoE = 2.453 × 10.2 / √32
MoE = 4.42
c. The confidence interval is:
CI = 47 ± 4.42
CI = (42.58, 51.42)
d. We can conclude with 98% confidence that the true mean is between 42.58 days and 51.42 days.
e. We can reduce the margin of error by either increasing the sample size, or using a lower confidence level.
Answer:
D but dont get mad
Step-by-step explanation:
<u>Given</u> :
<u>Subtract 5 from each side</u> :
<u>Take the root on each side</u> :
<u>Hence, the values of x are</u> :
Answer:
its D
Step-by-step explanation:
he is incorrect so that leaves us with b or d. and b is wrong about how much cheaper 60% is.
the 40% one is $75.57
the 60% one is $67.98
60% is about 7 dollars less. so it's D
