What is the highest common factor (HCF) of 9 and 15?
1 answer:
You might be interested in
The cost of 1kg of coal mined from the ore is $0.0397
Data;
- 1 ton = $35.99
- 1kg = ?
To find the cost of 1kg of coal, we can simply and equate 1 ton to its equivalent in ton and the solve.
let's write this and equate it
1 ton = $35.99
907kg = $35.99
1kg = x
Let's cross multiply both sides and solve for x
The cost of 1kg of coal is $0.0397
Learn more on proportions here;
Answer: 119
Step-by-step explanation:
Since the prior estimate of population proportion of defective handles (p) is unknown , so we take p= 0.5
Given : Margin of error : E=0.09
Critical value for 95% confidence interval :
Required sample size :-
Hence, the minimum sample size required = 119
i.e. 119 handles from the shipment should be inspected.