Answer:
no solution
Step-by-step explanation:
when you distribute, the 6x on each side cancel out leaving there to be no solution to the problem. I attached a photo of my work as well.
Answer:
$836.8
Step-by-step explanation:
Average price = mean = $965
Standard deviation, = $100
Given that distribution is approximately normal ;
The least expensive 10% of the laptops :
We Obtain the Zscore that corresponds to P(Z ≤ 0.1) ; this means the least 10% of the laptops ;
From, a normal probability distribution table ;
P(Z ≤ 0.1) = - 1.282
We substitute this into the Zscore formula :
Zscore = (x - mean ) / standard deviation
x = price
-1.282 = (x - 965) / 100
-128.2 = (x - 965)
x = - 128.2 + 965
x = $836.8
Hence, price is $836.8
Answer:
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Step-by-step explanation:
hope that helps:)
Set up the proportion. That's what similar gives you the right to do.
(12 + 3) / 4x = 12 / (3x + 1) Cross multiply
15 * (3x + 1) = 12 * 4x Remove the brackets
45x + 15 = 48x Subtract 45x from both sides.
15 = 48x - 45x
15 = 3x
x = 5
Answer:
March (3) to December (12)
Step-by-step explanation:
Given:
The graph above
Required:
Months where the number of Jerseys sold at least 150?
The above graph is a typical two dimensional graph.
A 2 dimensional graph has x and y axis.
The y axis (vertical) of this graph holds the number of jersey sold
While the x axis (horizontal) of this graph holds the number of month.
To check the month where at least 150 jerseys were sold, we mark the "150 mark" on the y axis then we trace it to the x axis.
For convenience sake, we'll make use of a line (see attachment).
Every month that falls under this line will not regarded as sales less than 150 (meaning that these months do not count as part of the answer)
From the line on the attachment, only the 3rd month to the 12th month satisfy this criteria.
Hence, the months at which number of sold jersey was atleast 150 is 3 to 12.