3 years ago

Ratio and Proportion problemPlease help meh

Mathematics

1 answer:

Anarel [89]3 years ago

4 0

Answer:

hope its helpful to uh.......

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clara is playing a game where you score -8 points each time you guess the correct answer. the goal is to get the lowest score. t

Lina20 [59]

Answer:

272

Step-by-step explanation:

-8--280=272

7 0

3 years ago

what is the mean of this data set? 12, 17, 16, 10, 20, 13, 14, 14, 12, 12, 19, 18. answers: 13.50, 14.00, 14.75, and 15.75

murzikaleks [220]

Answer:

14.75

Step-by-step explanation:

Add them all up, divide by 12

8 0

3 years ago

The Ohio Department of Agriculture tested 203 fuel samples across the state in 1999 for accuracy of the reported octane level. F

OlgaM077 [116]

Answer:

The Sample size is 1918.89035

Step-by-step explanation:

Consider the provided information.

It is given that 14 out of 105 samples failed.

Therefore p = 14/105 = 0.13 3... and q=1-0.133=0.867

Samples would be needed to create a 99 percent confidence interval.

Subtract the confidence level from 1, then divide by two.

$\frac{(1 -0.99)}{2}=0.005$

By standard normal table z=2.5758≈2.58

Calculate the sample size as:

$n=\frac{z^2pq}{e^2}$

Where, e is the margin of error,

Substitute the respective values.

$n=\frac{(2.58)^2(0.133)(0.867)}{(0.02)^2}=1918.89$

Hence, the Sample size is 1918.89035

4 0

3 years ago

Pavel, Ruth and Josh have part-time jobs.

MrMuchimi

M+m+z/3=3m
m+m+z=9m
2m+z=9m
z=7m
m+m+7m/3=3m
9m=9m
m=1
1+1+z/3=3
2+z=9
z=7
idk but i think that one person gets paid 7 dollars and the other ppl get paid 1 dollar----- this is probably veryyyyy wrong

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3 years ago

5 consecutive integers whose sum is -155

nekit [7.7K]

Answer:

-29, -30, -31, -32, -33

Step-by-step explanation:

add them together

5 0

3 years ago

Ratio and Proportion problemPlease help meh​

Ratio and Proportion problemPlease help meh