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allsm [11]
3 years ago
11

The Drama Club held a car wash to raise money. The equation y = 15x represents the amount of money y club members made for washi

ng x cars. Identify the constant of proportionality.
Mathematics
1 answer:
oksian1 [2.3K]3 years ago
7 0

Answer:

15

Step-by-step explanation:

Given that:

y = 15x

y = amount of money made by club members made for washing cars

x = number of cars washed

From the equation given ;

Amount made is directly proportional the number of cars washed

Mathematically,

y α x

y = kx

Where k = constant of proportionality

Comparing the given equation with

y = kx

y = 15x

k = 15 = constant of proportionality

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3 years ago
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nata0808 [166]

Answer: The point estimate of the population mean is <u>23</u>. The margin of error for the confidence interval is <u>2</u>.

Step-by-step explanation:

The confidence interval for the mean is of the form is given by :-

\overline{x}-\text{error}\leq\mu\leq\overline{x}+\text{error}

Given : Lower bound: \overline{x}-\text{error}=21​

Upper bound :\overline{x}+\text{error}= 25

Then ,the sum of lower and upper bound will be :-

2\overline{x}=21+25=46\\\\\Rightarrow\ \overline{x}=23

Since \overline{x}-\text{error}=21​

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4 0
4 years ago
What is the probability of flipping a coin 7 times and getting heads 5 times? Round your answer to the nearest tenth of a percen
N76 [4]
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Probability of a head, P(H) = 1/2 = 0.5
Probability of a tail , P(T) = 1/2 = 0.5
The number of possible outcomes is small enough to simply list the outcome:
The possible outcomes of flipping a coin 7 times and getting heads 6 times are these 7 possibilities:
THHHHHH
HTHHHHH
HHTHHHH
HHHTHHH
HHHHTHH
HHHHHTH
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The probability of EACH of the above outcomes is
= (0.5)(0.5)(0.5)(0.5)(0.5)(0.5)(0.5)
= (0.5)⁷
Since there are 7 possibilities and since the probabilities of every outcome is identical, the probability of rolling the 7 outcomes is,
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3 years ago
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Hello There!

12/2 = 6
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She will make 48 cups of trail mix.

Hope This Helps You!
Good Luck :) 

- Hannah ❤
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3 years ago
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The customer will need 4 yards.

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