The proper natation for a normal distribution with a mean of 250 and a standard deviation of 25 is?
1 answer:
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Answer:
D. Subtraction property of equality; n = 15
Step-by-step explanation:
Given equation that shows the cost of n basketballs uniforms,
C = 40n + 260
According to the question,
Total cost = $ 860,
⇒ 40n + 260 = 860
Using subtraction property of equality, subtract 260 on both sides,
⇒ 40n = 860 - 260
⇒ 40n = 600
Using division property of equality, divide both sides by 40.
⇒ n = = 15.
Hence, 15 uniforms were purchased.
i.e. Option D is correct.
<h3><u>Solution</u>:-</h3>
The equation of any straight line can be written as in slope intercept form as -
where,
- m is its slope
- c is its y-intercept.
<em><u>Given equation:- </u></em>
<u>Arranging it in slope intercept form by transposing 5x to RHS </u>
Comparing the equation y = -5x +10 with the standard form of the equation, we get -
Thus , 5 is our required answer.