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sdas [7]
2 years ago
11

If the price of a gallon of gas was $0.89 in 1984 and was $3.59 in 2014, what was the average rate of change in the price per ga

llon of gas?
Mathematics
1 answer:
mylen [45]2 years ago
8 0

Answer:

0.09

Step-by-step explanation:

avg rate of change is:  change in y/ change in x

so it´d be   3.59 - 0.89 / 2014 - 1984

= 2.7/ 30

= 0.09

note:

The slope formula and the average rate of change formula are the same, just written a bit different, so you could also use:

y2 - y1 / x2 - x1

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3 years ago
The graph of 15x + 7y = 15 is shown on the grid. Which ordered pair is in the solution set of 15x + 7y ≥ 15?
elena55 [62]

Answer:

The correct option is c.

Step-by-step explanation:

The given equation is

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15x+7y\geq 15

A point will contained in solution set if the above inequality satisfied by that point.

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This statement is false, therefore option a is incorrect.

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15(-3)+7(0)\geq 15

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66\geq 15

This statement is true, therefore option c is correct.

Check the point (-3,-3),

15(-3)+7(-3)\geq 15

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This statement is false, therefore option d is incorrect.

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3 years ago
The difference of a number and its successor
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1

Step-by-step explanation:

The difference between a number and its successor is 1

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