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3 years ago

WILL MARK BRAINLEST IF YOU ANSWER CORRECTLY

Mathematics

1 answer:

muminat3 years ago

4 0

Answer:

7 units

Step-by-step explanation:

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The equation below describes a proportional relationship between x and y. What is the constant of proportionality?

Vladimir [108]

Y =ox is the equation of a proportional line/relationship. In this case since 5/6 is your coefficient of x, that’s your constant of proportionality.

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3 years ago

0.034 is 1/10 of 0.0034

torisob [31]

False, .0034 is 1/10 of .034

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3 years ago

What percent of 2000 is 160?<br> Show work

ArbitrLikvidat [17]

Hello from MrBillDoesMath!

Answer:

.08%

Discussion:

Let the percent be denoted "p". Then

2000 * p% = 160 => ( as p% = p/100)

2000* p/100 = 160 =>

20p = 160 =>

p = 8 or .08%

Regards,

MrB

5 0

3 years ago

Read 2 more answers

The total amount of money, m, earned by washing cars at a school fundraiser is proportional to the number of cars, c, washed at

vaieri [72.5K]

M=c•p

multiplying the prince by the number of cars washed will give you the total amount of money the school has raised

7 0

3 years ago

Suppose a bag contains many marbles, 54% of which are purple. You draw 5 marbles from the bag with replacement.

dolphi86 [110]

Part A

Use the binomial probability distribution formula.

p = 0.54 = probability of getting a purple marble

n = 5 = sample size

x = 2 = number of purple we want to get

$P(x) = \frac{n!}{x!(n-x)!}*p^x*(1-p)^{n-x}\\\\P(2) = \frac{5!}{2!(5-2)!}*0.54^2*(1-0.54)^{5-2}\\\\P(2) = 10*0.54^2*0.46^3\\\\P(2) = 0.283831776\\\\$

The $\frac{n!}{x!(n-x)!}$ portion is from the nCr combination formula. The exclamation marks indicate a factorial.

Alternatively, you could use Pascal's Triangle for that portion.

<h3>Answer: 0.283831776</h3>

This decimal value is exact. Round it however you need to.

============================================================

Part B

To find the expected value, aka the mean, we multiply the sample size and probability of getting a purple marble on any single selection.

n*p = 5*0.54 = 2.7

<h3>Answer: 2.7</h3>

6 0

2 years ago