2 years ago

Write a porportion to find how many points a student needs to score on the test to get the given score

Mathematics

1 answer:

horrorfan [7]2 years ago

4 0

The first one is 20. The second one is 64 points

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According to data from the state blood program, 40 percent of all individuals have group A blood. If six individuals give blood,

Serjik [45]

Answer: 0.27648

Step-by-step explanation:

Given : The proportion of all individuals have group A blood : p=0.040

Total individuals give blood : n= 6

Let X be the number of individuals have group A blood.

Since all individual are independent of each other.

$X\sim Bin(n=6, p=0.40)$

Formula : $P(X=x)=^nC_xp^x(1-p)^{n-x}$ , where n= sample size , p = probability of getting success in each trial.

The probability that exactly three of the individuals have group A blood. :

$P(x=3)= ^6C_3(0.40)^3(1-0.4)^3\\\\= \dfrac{6!}{3!3!}\times(0.40)^3(0.60)^3\\\\=0.27648$

The probability that exactly three of the individuals have group A blood. is 0.27648

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3 years ago

What is the coefficient in the expression? 3(mx)4 + 5

Goryan [66]

3 is the answer to your question

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2 years ago

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Solve the equation 5x + 7y = 35 for y.

erastovalidia [21]

Answer:

D. y = -5/7x + 5

Step-by-step explanation:

5x + 7y = 35

-5x -5x

7y = 35 - 5x

/7 /7 /7

y = 35/7 - 5/7 x

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I'm not sure to use 6 or 10 for a side length

dlinn [17]

Answer:

Step-by-step explanation:

6 is the width not the length

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2 years ago

If rent to go charges you $30 for 300 miles what is the unit rate per 1 mile

lesantik [10]

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$10

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300 divided by 30 is 10

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