from 40 bulbs tested by a quality controller, 3 are faulty calculate the expected number of faulty bulbs in a box of 500
Answers
3/40 were faulty
out of 500 bulbs, 'x' were faulty.
x/500 were faulty
cross multiply
40x=1500
Divide both sides by 40
x=37.5
Since you can't have .5 of a bulb, lets round up to 38
Answer=38 bulbs
Related Questions
Which function is linear?f(x) = 13x[ + 4B)f(x) = 3x - 4D)f(x) = 13xl - 4Please help me
Is 7/8 less than greater than or equal to 3/4
You want to put $2,500 in a simple interest account. It has a 4% annual interest rate. How long will it take you to earn $200 in interest?
I don't know what method I should use to solve for y in this equation: (y-3)^2=4y-12
6^7
2^11
2^12
2^64
Answers
Answer:
2¹²
Step-by-step explanation:
= 16³
We'll divide 16 into the product of its prime factors
= ( 2×2×2×2)³
There are four 2s so it becomes 2⁴
= (2⁴)³
= 2⁴ˣ³
= 2¹²
Answer:
2^12
Step-by-step explanation:
16^3 = (2^4)^3 = 2^(4x3) = 2^12
Hope this helps!
Answers
Hope this helps :)
Answers
Answer:4
Step-by-step explanation: 2 + 2 is 4 minus 1 thats 3 quik maffs
Answer:
UM this is a dumb question but the answer is 4......
~QueenSupreme aka Black-Rose♥
Answers
Answer:
x = 4
Step-by-step explanation:
Subtract 2 from both sides. We get: 5x = 20.
Then x = 4
Answers
Answer: Each book weighs 2.5 pounds.
Step-by-step explanation: 75 divided by 2.5 is 30. Or you could also get the answer by multiplying 30 and 2.5 which it would be 75. So, therefor, the answer is 2.5.
Final answer:
To find the weight of each textbook, we divide the total weight by the number of books. Therefore, each book weighs 2.5 lb.
Explanation:
If thirty copies of a textbook weigh a total of 75 lb, to find the weight of each individual book, we need divide the total weight by the number of books.
Here is a step-by-step explanation of the solution:
- Determine the total weight of the textbooks, which is 75 lb.
- Determine the number of books, which is 30.
- Divide the total weight by the number of books. So, 75 lb ÷ 30 = 2.5 lb.
Therefore, each book weighs 2.5 lb.
Learn more about Weight of textbooks here:
#SPJ2
Answers
Answer:
≈ $937
Step-by-step explanation:
to answer this, we have to use the compound interest formula which is:
A = P(1 + r/n)^nt
the meanings of each variable are:
A = result
P = principal amount
r = rate (in decimal form)
n = the number of compound periods (eg: annually, quarterly, etc)
t = time
in the word problem, we need to solve for A. we are given P, r, n, and t.
P = 800
r = 0.02 also known as 2%
n = 1 keyword being annually which is equal to the value of 1
t = 8
we can plug these values into the formula:
A = 800(1 + 0.02/1)
we can use a calculator to calculate this easier but ill break it down:
A = 800(1 + 0.02/1)
A = 800(1.02)
A = 800(1.02)
A = 800(1.17165938)
A ≈ 937.327
we can round 937.327 to the nearest dollar which is $937
Carl would have earned $937 over the course of 8 years