Question

18. An electronics store makes a profit of $25 for every portable DVD player sold and $55 for every DVD recorder sold. The managers target is to make at least $225 a day on sales of portable DVD players and DVD recorders. Write an inequality that represents the number of both kinds of DVD players that can be sold to reach or beat the sales target. Let p represent the number of portable DVD players and r represent the number of DVD recorders. (Choices are in comments)

Answer 1

P represents the number of portable DVD players, and they make a profit of $25 for each one. So you know it is 25p.
R represents the number of DVD recorders, and they make a profit of $55 for each one. So you know that one is 55r.
225 is the target of money that they want to make.
25p + 55r ? 225.
We need to find what kind of equality to use, right?
It says in there "at least". That's the key word.

We know that it is not C, because they paired the wrong numbers with the wrong variables.
It is not D, because it can be equal to 225, as well as more than it.
Now that you know it can be either B or A, which one do you think it is? :)

Answer 2

A?

Answer 3

It cannot be A, because the people want to make at least 225. If 225 is more than what they're making, then they're not making their goal, right?
It will be B, because they would be making either their target goal, or more than that, which is what they want.
:)

Answer 4

oh yeah lol