Bryce has heard that gas appliances are cheaper to use and can lower utility costs. he is interested in purchasing a new gas stove for his kitchen to replace his electric stove. assuming that the stove gets used one hour per day, use the following chart to determine how much bryce will save each year in utility costs by purchasing the gas appliance. electric stove - 13 cents per hour
gas stove - 5 cents per hour
a. $29.75
b. $18.25
c. $29.20
d. $47.45

The correct answer is: C. $29.20 is the amount saved

Step-by-step explanation:

Using a year as equal to 365 days.

Electric stove cost 13 cents per hour. So the cost of using electric stove for the entire year is:

Gas stove cost 5 cents per hour. So the cost of using gas stove for the entire year is:

To know how much Bryce save each year; we find the difference between the cost of using Electric stove and the cost of using Gas stove.

4745 - 1825 = 2920 cents

To convert cents to dollars, we divide by 100:

So, therefore, Bryce will save $29.20 for each year.

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explanation

the graph has a slope of 1/3 because each time you move up 1, you go to the right 3. so, slope = rise/run = 1/3. we can cross choice a off the list since we want a slope of 3, rather than 1/3.

the first table shown has a slope of -3. this is because the rise is -6 and the run is 2, so slope = rise/run = -6/2 = -3. note how x increases by 2 each time (run) and y drops by 6 each time (rise). choice b can be eliminated.

the second table has a slope of 3. each time x goes up by 1, the y values increase by 3. slope = rise/run = 3/1 = 3. alternatively you can use the slope formula to prove that the slope is 3 here. use any two rows of values to generate the two points. choice c is one of the answers

the third table also has a slope of 3. let's use the slope formula to prove as such. i'm going to use the first two rows of the table. so i'll use the two points (2,1) and (5,10)

m = slope

m = (y2-y1)/(x2-x1)

m = (10-1)/(5-2)

m = 9/3

m = 3 so we get a slope of 3

choice d is the other answer

answer: x

step-by-step explanation: