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LenaWriter [7]
3 years ago
11

I have another Brainliest

Mathematics
1 answer:
Lynna [10]3 years ago
5 0

Answer:

  1. 5 times
  2. $22.75

Step-by-step explanation:

1.  Let n represent the number of times you can ride. To keep the cost within your budget, you must have ...

  2.75n ≤ 15.00

  n ≤ 5.45

You can ride 5 times. You don't have enough money to ride 6 times.

__

2. You can choose the correct answer using estimation of the costs. (You only need to work out the numbers in detail if an estimate doesn't get you close enough.)

3 all-day passes are a little more than $20 each, so cost a little more than $60.

2 rides on the Mountain Coaster are another $9, so your total cost will exceed $69. That means you will get less than $31 in change from $100. The only answer choice in that range is $22.75.

If you add up the costs of the passes and rides, you find they come to $77.25, so your change from $100 will be $22.75.

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Given the right triangle below, what is the length of the hypotenuse
Leviafan [203]

Answer:

5 sqrt(10) = c

Step-by-step explanation:

Since this is a right triangle, we can use the Pythagorean theorem

a^2 + b^2 = c^2

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3 years ago
The ages of trees in a forest are normally distributed with a mean of 25 years and a standard deviation of 4. Approximately what
harkovskaia [24]

Answer:

78.88%

Step-by-step explanation:

We have been given that

\mu=25,\sigma=4,x_1=20,x_2=30

The z-score formula is given by

z-\text{score}=\frac{x-\mu}{\sigma}

For x_1=20

z_1=\frac{20-25}{4}\\\\z_1=-1.25

For x_2=30

z_2=\frac{30-25}{4}\\\\z_2=1.25

Now, we find the corresponding probability from the standard z score table.

For the z score -1.25, we have the probability 0.1056

For the z score 1.25, we have the probability 0.8944

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0.8944 - 0.1056

= 0.7888

=78.88%

6 0
3 years ago
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