In a shipment of 1200 parts, 60 were found to be defective. What percent of the parts were faulty?
a.60
b. 1200
c what percent
d. shipment
answer:a
Ms. Jefferson has been given a loan of 20,000 for a 1 year. If the interest charged is $800, what is the interest rate on the loan?
answer: 4.5%
A railing for a deck requires pieces if redwood 3ft, 10in., 12ft 6in., and 5ft 4in. long. What is the toal length of material that is needed?
answer: 21ft 10in.
The correct answer isn't given for the first problem. 60 out of 1200 is not 60 percent.
Your second and third answers are not correct.
Please try again.
first one:
60/1200 = 0.05 = 5%
You must have a typo in your answer choices.
second one: 800/20000 = .04 = 4% not 4.5%
third one: I got 21 feet 8 inches
(join the rest of the world and GO METRIC to avoid such awkward calculations)
To determine the percentage of faulty parts in the shipment, you need to divide the number of defective parts by the total number of parts and then multiply by 100.
The calculation would be: (60/1200) * 100
Simplifying this further:
(1/20) * 100
5 * 100 = 500
So, the percentage of faulty parts in the shipment is 5%.
To find the interest rate on the loan, you need to divide the interest charged by the loan amount and then multiply by 100.
The calculation would be: (800/20,000) * 100
Simplifying this further:
(4/100) * 100
4%
So, the interest rate on the loan is 4%.
To calculate the total length of material needed for the railing, you need to add up the lengths of the individual pieces.
The given lengths are:
3ft
10in
12ft
6in
5ft
4in
To add these lengths together, you need to convert the inches to feet and then add up the feet and inches separately.
10in is equal to 10/12 ft = 0.83ft
6in is equal to 6/12 ft = 0.50ft
4in is equal to 4/12 ft = 0.33ft
Now, you can add up the lengths:
3ft + 0.83ft + 12ft + 0.50ft + 5ft + 0.33ft = 21.66ft
So, the total length of material needed is 21ft 10in (rounded to the nearest inch).