3 years ago

1/5 ( 15 + 10k ) = please help and make sure your answer is accurate.

Mathematics

1 answer:

astra-53 [7]3 years ago

8 0

The answer is 3 + 2k

This is because multiplying by 1/5 is like dividing each term by 5

10k + 15 = 5 • (2k + 3)

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Fission tracks are trails found in uranium-bearing minerals, left by fragments released during fission events. An article report

Harlamova29_29 [7]

Answer:

Mean track length for this rock specimen is between 10.463 and 13.537

Step-by-step explanation:

99% confidence interval for the mean track length for rock specimen can be calculated using the formula:

M± $\frac{t*s}{\sqrt{N}}$ where

M is the average track length (12 μm) in the report
t is the two tailed t-score in 99% confidence interval (2.977)
s is the standard deviation of track lengths in the report (2 μm)
N is the total number of tracks (15)

putting these numbers in the formula, we get confidence interval in 99% confidence as:

12± $\frac{2.977*2}{\sqrt{15}}$ =12±1.537

Therefore, mean track length for this rock specimen is between 10.463 and 13.537

4 0

3 years ago

Marco and his two younger sisters would like to purchase a silver charm bracelet for their mother’s birthday. they went to the m

ioda

Function would be f(x) = 5x+85

here, x= 15

5(15)+85 = 75+85 = $160

8 0

3 years ago

Help please Math problems?

Andrews [41]

The answer is ep I think

3 0

3 years ago

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A child has toy blocks that contain the numbers 1 through 80. What is the probability that the will pick up a number that is

Tju [1.3M]

Answer:

73/80

Step-by-step explanation:

multiples of 11 between 1 and 80 are 11,22,33,44,55,66,77

number of terms=7

P(multiple of 11)=7/80

P(not a multiple of 11)=1-7/80=73/80

5 0

2 years ago

there's some number that if you subtract 15 from it first, and then multiply that total by 7, the result is 28. find the number

yulyashka [42]

(x-15)*7=28

x-15=4

x=19

Final answer: 19

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3 years ago

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