Answer:
$122
Step-by-step explanation:
amount she had + amount she earns = amount she has now
55 + 67 =
122
Answer:
Step-by-step explanation:
1. multiply both sides by 2
<em>3b-4=2c</em>
2. add 4 to both sides
3b=2c+4
3. divide both sides by 3
b= 
Answer:
lower bound = 90 - 10 = 80 cm
upper bound = 90 + 10 = 100 cm
lower bound d = 1500 x 80 cm = 120,000 cm
upper bound d = 1500 x 100 cm = 150,000 cm
10 4/10 or 10 2/5 if you reduce it
Answer: (0.685, 0.735)
Explanation:
First, we will compute the confidence level of the given:

They gave us a margin of error of 0.025. From the given, we know that p=71%=0.71.
The confidence interval would then be:

Therefore, the confidence interval would then be (0.685, 0.735)