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3 years ago

13

For every two feet the ramp goes up it also goes 5 feet forward. If this ratio remained constant, how many feet high would the r

amp be if it went 22.5 feet forward?

1 answer:

-Dominant- [34]3 years ago

3 0

22.5x(2y/5x)=9ft
...........................

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The drama club has sold 942 tickets to their play if their theater seats 57 in each row how many full rows were there be how man

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999 if you are adding

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3 years ago

Simplify <br> 1/3 + 4/x-2 = 6

Maurinko [17]

Answer:

1/3+4/x-2=6

Step-by-step explanation:

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2 years ago

The average score of all pro golfers for a particular course has a mean of 70 and a standard deviation of 3.0 (Think of these as

bija089 [108]

Answer:

0.477 is the probability that the average score of the 36 golfers was between 70 and 71.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 70

Standard Deviation, σ = 3

Sample size, n = 36

Let the average score of all pro golfers follow a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

P(score of the 36 golfers was between 70 and 71)

$\text{Standard error of sampling} = \displaystyle\frac{\sigma}{\sqrt{n}} = \frac{3}{\sqrt{36}} = \frac{1}{2}$

$P(70 \leq x \leq 71) = P(\displaystyle\frac{70 - 70}{\frac{3}{\sqrt{36}}} \leq z \leq \displaystyle\frac{71-70}{\frac{3}{\sqrt{36}}}) = P(0 \leq z \leq 2)\\\\= P(z \leq 2) - P(z \leq 0)\\= 0.977 - 0.500 = 0.477= 47.7\%$

$P(70 \leq x \leq 71) = 47.7\%$

0.477 is the probability that the average score of the 36 golfers was between 70 and 71.

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3 years ago

Determine wether the ratios are proportional: 6/36 and 1/6

dangina [55]

They are proportional. If you divide 6/36 by 6 on the numerator and the denominator, you get the same fraction of 1.6.

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3 years ago

What is the value of n? n–2= 10n+ 4/2 Enter your answer in the box.

pentagon [3]

Answer:

-4 / 9

Step-by-step explanation:

n - 2 = 10n + 4/2

n - 10n = 4/2 + 2

-9n = 4/2 + 4/2 ( taking LCM of 4/2 and 2)

-9n = 8/2

-9n = 4

n = 4 / -9

therefore n = -4 /9 ( since the minus sign doesn't make a difference whether placed at numerator or denominator) .

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3 years ago