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3 years ago

Find the percent increase is admission to the amusement park is raised from $70 to $80.

Mathematics

1 answer:

Elena L [17]3 years ago

8 0

Answer:

14.286% increase

Step-by-step explanation:

Since the admission to the amusement park increased by $10 we need to find what percentage of $70 equals $10.

We can find this percentage by multiplying 10 (the difference in money) by 100 (a hundred percent), and dividing that by 70 (the initial cost)

$10*100/70=14.286$

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sergiy2304 [10]

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Her brother has 85 * x stickers.

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Answer:

$\bar x = 82$

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Step-by-step explanation:

Given

$n = 12$

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To do this, we simply calculate the sample standard deviation

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$\sigma = \sqrt\frac{(87-82)^2+ (91-82)^2+ ....+ (79-82)^2+ (83-82)^2+ (96-82)^2}{12-1}$

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<em>Hence, the need to solve for sample mean and sample standard deviation</em>

3 0

3 years ago

Find the value of X in X-X³=17

Karolina [17]

Answer:

Step-by-step explanation:

Step1: find the interval of roots. Consider -3 and -2

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Hence, the root must be on [-3,-2]

Step2: consider the middle point -2.5

$f(-2.5) = 3.875 >0$

Then, the root must be on [-3, -2.5]

Step 3: Repeat step 2 by finding the value of f at the middle point -2.75

$f(-2.75) = -1.0468$

Step 3: Repeat step 2 by finding the value of f at the middle point of the interval [-2.75,-2.5] which is -2.625

$f(-2.625) = 1.537 >0$

Step4: Repeat step 2 on [-2.75, -2.625]

Repeat step 2 until you got the root which is -2.701

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3 years ago

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Mamont248 [21]

Check the picture below

and recall that

$\bf sin(\theta)=\cfrac{opposite}{hypotenuse}
\qquad
cos(\theta)=\cfrac{adjacent}{hypotenuse}\\\\
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\\\\\\
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4 years ago

Read 2 more answers