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Mathematics

2 answers:

katrin2010 [14]3 years ago

8 0

The image isn’t showing for me

Sonbull [250]3 years ago

4 0

Answer:

x=-4/3+y/3. y=-11/4+3x/4

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A coffee mixture contains beans that sell for $0.08 per pound and $0.32 per pound. If 110 pounds of beans create a mixture that

garik1379 [7]

Answer:

B = 87.08 pounds @ $0.32

A = 22.92 pounds @ $0.08

Step-by-step explanation:

given,

cost of beans (A)= $ 0.08/pound

and another beans cost (B) = $ 0.32 /pound

total weight of the pound = 110 pound

selling price of mixture = $ 0.27/pound

cost of each bean = ?

A + B = 110

A = 110 - B-------(1)

0.08 A + 0.32 B = 0.27 x 110

0.08 A + 0.32 B = 29.7

Putting value of A

0.08(110 - B) + 0.32 B = 29.7

8.8 - 0.08 B + 0.32 B = 29.7

0.24 B = 20.9

B = 87.08 pounds @ $0.32

A = 22.92 pounds @ $0.08

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4 years ago

The correlation coefficient r between the age of a homeowner, x, and the number of years remaining on the homeowner's mortgage,

marysya [2.9K]

Solution: We are given that the correlation coefficient between the age of a homeowner, x , and the number of years remaining on the homeowner's mortgage, y, is 0.485

We know that coefficient of determination is the percent of the variation in the dependent variable that is explained by the independent variable. The coefficient of determination is the square of correlation coefficient and is denoted by $R^{2}$