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Sergio [31]
3 years ago
11

Ruth has 7 more brown pencils than blue pencils, and 11 more blue pencils than red pencils. She has 5 red pencils. How many brow

n, blue, and red pencils does Ruth have in all?
Mathematics
1 answer:
olya-2409 [2.1K]3 years ago
8 0

Answer: There are 5 red pencils, 16 blue pencils and 23 brown pencils.

Step-by-step explanation:

Since we have given that

Number of red pencils = 5

Number of blue pencils are 11 more than red pencils.

So, Number of blue pencils would be

11+5=16

Number of brown pencils are 7 more than blue pencils.

So, number of brown pencils would be

16+7=23

Hence, there are 5 red pencils, 16 blue pencils and 23 brown pencils.

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Answer: 0.8

Step-by-step explanation:

given data:

uncertainity = 4g

bias = 2g

solution:

σX =0.2 and σY = 0.4

σcX

= 3σX

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= 0.8

6 0
3 years ago
Jimmy is writing a paper for one of his classes. The paper has to be 2000 words long, and so far he has written 532 words. Of he
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3 years ago
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Find the lettered angles in each of the following.
trapecia [35]

Answer:

q = 80 degrees

r = 70 degrees

s = 10 degrees

t = 70 degrees

u = 40 degrees

v = 60 degrees

Step-by-step explanation:

starting with the fact that all angles in any triangle always sum up to 180 degrees :

q = 180 - 60 - 40 = 80 degrees

r = 180 - (60+10) - 40 = 180 - 70 - 40 = 70 degrees

the triangle 40-60-q and v-u-blank are similar triangles. your can say the smaller triangle is just a projection of the large triangle through the focal point at angle q.

that means the angles must be equal.

v = 60 degrees

u = 40 degrees

similar for 10-r-blank and t-s-blank.

s = 10 degrees

t = 70 degrees

6 0
2 years ago
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1) Write an equation that can be used to solve for the missing angles. (5pts)
algol13

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3 years ago
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We would like to construct a 99% confidence interval for the mean, based on a sample of 50 observations. The sample standard dev
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Answer:

Lower confidence limit = 20.191

Step-by-step explanation:

Sample mean; x' = 22

Sample standard deviation; s = 5.5

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Since sample size > 30, we will use the formula;

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CI = 23.809 or 20.191

Lower confidence limit = 20.191

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3 years ago
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