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Aleonysh [2.5K]
2 years ago
6

A caterer's total cost for catering a party includes a fixed cost, which is the same for every party. In addition the caterer ch

arges a certain amount for each guest. If it costs $300 to serve 25 guests and $420 to serve 40 guests, find the cost per guest. Write a system of equations for the situation and solve using inverse matrices.
Mathematics
1 answer:
Rus_ich [418]2 years ago
5 0
A caterer's total cost for catering a party includes a fixed cost, which is the same for every party. In addition the caterer charges a certain amount for each guest. If it costs $300 to serve 25 guests and $420 to serve 40 guests, find the cost per guest. Write a system of equations for the situation and solve using inverse matrices.
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using proportional law 5.6
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Which equation is equal up to one-hundredth of 36? Is it 0.3*0.12 or 0.36÷0.12 or 0.3*1.2
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Select strong association, weak association, or moderate association to correctly classify the correlation coefficient.
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0.45 is a moderate association

0.95 and -0.8 are both strong association

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Explanation:


This is the interpreation of the correltaion coefficient:

1) The correlaion coefficient assesses the relationship between two variables in a scatter plot.


2) If the sign of the correlation coefficient is positive means that the two variables trend to grow or decrease in the same sense. This is an uphill line or curve:  if variable X grows, variable Y grows, and if variable X decreases variable Y grows.

If the sign of the correlation coefficient is negative means that the two variables go in opposite direction. This is a downhill line or curve.


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5) A correlation coefficient arroun +0.5 or -0.5 is a moderate association.


6) A correlation coefficient of 0 is a nill association.


7) A correlation coeffiicient between 0 and 0.3 is a weak association. The same when the correlation coefficient is between -3 and 0.
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Step-by-step explanation:

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Express 500 g as a percentage of 2.5 kg.​
azamat

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Step-by-step explanation:

500*100 = 50,000

50,000/2500=20

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3 years ago
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