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bixtya [17]
3 years ago
12

7.50x +4.50y = 2,212.5 x+y = 375

Mathematics
1 answer:
AURORKA [14]3 years ago
3 0

Answer:

5x+3y-1475=0

Step-by-step explanation:

if this helps please mark brainliest <3

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the number of hours h that it takes for ice to malt varies inversely with the temperature t it takes 3hours for a piece of ice t
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Step-by-step explanation:

Formula

h = k/temp

Givens

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2 years ago
The dean of a college is interested in the proportion of graduates from his college who have a job offer on graduation day. He i
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Answer:

A. D

B. χ2 > 3.841

C. χ2 = 3.4806

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Step-by-step explanation:

Question A: The hypotheses the dean should use are:

a) H0 : π1 - π2 ≥ 0 versus H1 : π1 - π2 < 0.

b) H0 : π1 - π2 ≤ 0 versus H1 : π1 - π2 > 0.

c) H0 : π1 - π2 ≠ 0 versus H1 : π1 - π2 = 0.

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H0 : π1 - π2 = 0 versus H1 : π1 - π2 ≠ 0.

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Answer: χ2 = 3.4806 (using the formula)

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