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n200080 [17]
3 years ago
10

Joe has a bag of blocks. 3 red blocks and 2 blue blocks weigh 24 ounces while 1 red block and 3 blue blocks weigh 16 ounces. Def

ine your variables and set up a system of equations. DO NOT SOLVE.
Mathematics
1 answer:
fredd [130]3 years ago
3 0

Answer: 3r + 2b = 24

r + 3b = 16

Step-by-step explanation:

Let the red blocks be represented by r

Let blue blocks be represented by b

Since 3 red blocks and 2 blue blocks weigh 24 ounces. This will be:

3r + 2b = 24

1 red block and 3 blue blocks weigh 16 ounces. This will be:

r + 3b = 16

Therefore, the equation will be:

3r + 2b = 24

r + 3b = 16

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A sample was taken of the salaries of four employees from a large company. the following are their salaries, in thousands of dol
Free_Kalibri [48]

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n = the number of observations

For given question,

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First we find the mean of their salaries.

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So, \bar{x}=31

Using the formula for variance ,

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Therefore, for given sample of salaries of four employees, the variance of their salaries is: 26 thousands of dollars

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brainly.com/question/13673183

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