If x represents Harry's age now, then which of the following equations could be used to solve the problem?

1 answer:

7 0

Let x represent Harry's age now, and Nick's age now is 7x. [t]
In 6 years, Harry is x + 6 , and it is given that Nick's age will be 5(x+6). [t+6]
Combining [t] and [t+6], 7x + 6 = 5(x+6).
So the formula 7x + 6 = 5(x+6) represents the problem.

And x = 12 , so Harry's age in 6 years will be x +6 or 18 years .

please give brainliest answer to me!

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A physical fitness association is including the mile run in its secondary-school fitness test. The time for this event for boys

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Answer:

The probability that a randomly selected boy in secondary school can run the mile in less than 302 seconds is 0.0107

Step-by-step explanation:

Consider the provided information.

It is given that mean is 440 seconds and standard deviation is 60 seconds.

z factor for less than 302 seconds would be: $z=\frac{x-\mu}{\sigma}$

z = (302 - 440) / 60 = -2.3

The probability of getting a z factor of less than -2.3 = 0.0107 approximately.

looking up in the z-table for a z factor of -2.3.

The probability of a student running the mile in less then 302 seconds would be 0.0107.

Hence, the probability that a randomly selected boy in secondary school can run the mile in less than 302 seconds is 0.0107

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Since all three sides measurements are given, we have the solution below:
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In part B, we need to solve for the length of the fourth side and the solution is shown below:
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Step-by-step explanation:

Ans: b<3. I hope this helps.