Remark
Whatever the original price, he gets 70% in the first instance.
He gets 80% in the second instance.
He gets 90% in the third instance
His total income is 240 dollars.
Let the original price be x
Equation
70%x + 80%x +90%x = 240
70% = 0.7 ; 80% = 0.8 ;90% = 0.9
Solution
0.7x + 0.8x + 0.9x = 240 Take out x as a common factor and add the decimals.
x (0.7 + 0.8 + 0.9) = 240
2.4x = 240 Divide both sides by 2.4
x = 240/2.4
x = 100
So the watches should have brought in 3*100 = 300 dollars.
He only brought in 240 dollars.
He lost 300 - 240 = 60 dollars.
The answer is B.
Answer:
X=13
Step-by-step explanation:
First I squared 12 and 5 and got 144 and 25 then I added them which was a total of 169 then I took the square root of 169 and got x=13.
Answer:xscscx
Step-by-step explanation:
We are given an item cost before tax = $3.
Sales tax on item = 4.4% of the actual cost.
We are given actual cost = $3.
Therefore, 4.4 % of 3 = 0.044 × 3 = $0.132.
We need to round it to the nearest hundredth or cent that is upto two decimal places.
0.132 could be round to 0.13.
<h3>Therefore, $0.13 tax would you pay on that item on the given item cost $3.</h3>
Answer:
(a) According to the central limit theorem, the distributions of the sample means of sufficiently large samples randomly selected from a population with mean, μ and standard deviation, σ with replacement will be normally distributed
Therefore, given that the size of the population from which the samples were selected (34 petri dishes) is comparable the sizes of the samples, (16 and 18), therefore, the samples are approximately normal
Also given that the petri dishes were prepared with growth medium designed to increase the growth of microorganisms, with an expected amount of growth, the samples therefore came from approximately normal distributions
Step-by-step explanation: