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Katarina [22]
3 years ago
10

7. The amount of time it takes an athlete to complete a Ninja warrior course is normally distributed with mean 8.25 minutes and

standard deviation 0.4 minutes.
What percent of athletes complete the course in less than 7.5 minutes?
A00304
B. 05134
01342
0.3892
Mathematics
1 answer:
otez555 [7]3 years ago
4 0
The answer is c I think
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7 times the number of cookies in the jar plus 5 more from the tray is 54. How many cookies are in the jar?
Digiron [165]

Answer:

The number of cookies in the jar is 7.

If we include the 5 cookies from the tray in the jar the total number of cookies would be 5 + 7 = 12

Step-by-step explanation:

<em>Consider the number of cookies in the jar as 'x'. Hence the equation formed would be:-</em>

7(x) + 5 = 54

7x + 5 = 54

7x = 54 - 5

7x = 49

x = \frac{49}{7}

x = 7

The number of cookies in the jar is 7.

If we include the 5 cookies from the tray in the jar the total number of cookies would be 5 + 7 = 12

<em>Hope this helps.</em>

8 0
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I struggle in math, and occasionally I'll confuse the questions I try to answer
Alex17521 [72]
15X=12X+12
Subtract 12X
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X=4
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3 years ago
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