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trapecia [35]
2 years ago
10

Betty had 40$ in her pocket. She bought 12 identical bags of popcorn. Betty was left with $10 after buying the popcorn. What was

the price, in dollars, of each bag of popcorn?
Mathematics
1 answer:
omeli [17]2 years ago
8 0

Hey darling^^

Your answer is...

$2.50

<em>~Hope I helped~</em>

*Alanna*

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In linear models there is a constant additve rate of change. For example, in the equation y = mx + b, m is the constanta additivie rate of change.


In exponential models there is a constant multiplicative rate of change.


The function of the graph seems of the exponential type, so we can expect a constant multiplicative exponential rate.


We can test that using several pair of points.


The multiplicative rate of change is calcualted in this way:

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Use the points given in the graph: (2, 12.5) , (1, 5) , (0, 2) , (-1, 0.8)

[12.5 / 5] / (2 - 1) = 2.5


[5 / 2] / (1 - 0) = 2.5


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Then, do doubt, the answer is 2.5





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