An electrician earns 100 dollars for a project installing light fixtures. she must pay for the light fixtures herself and they cost 2 dollars and 50 cents each at the hardware store. create an equation to represent her profit from the project. let x represent the number of light fixtures and y represent her total profit (the amount of money she has left over after paying for the light fixtures). if she wants to earn a profit of 75 dollars from this project, how many fixtures should she plan to install? show your work

d

step-by-step explanation:

hello and welcome!

so, when we see the words "proportional" along with a table, we need to know that we're looking numbers that divide by the same thing.

looking at this table, we simply have to do a trial and error, and divide to see which numbers have the same quotient. if you look at choice a & c, they both have equal quotients for three of the numbers, with one exception, so those can't be the answer. looking at b, there is no similarity, so that can't be it. then, we see d; if you divide all the numbers in the table, you'll see that they all divide by two, which is a proportional relationship, and our answer!

also, always remember that the x will always be the number that goes into y, and somewhere behind this table, is a formula. for this specific table, the formula would be:

since our x-value is being divided by two to get the y-value. and if they were to ask for more numbers in the series, this is the formula you would use to find them.

66.666666667%

step-by-step explanation:

divide 150 by 100

divide 100 by 1.5

there you go!

decreased by 33.333333334%