A toy factory assembles 19,824 toy castles over a 12 hour period time. The same number of castle is assembled each hour?
2 answers:
Answer:
1652 toys will be assembled in each hour by the company.
Step-by-step explanation:
A toy factory assembles 19824 toy castles over a period = 12 hours
We have to calculate the number of castles assembles each hour.
Number castles assembled per hour =
=
= 1652 toys
Therefore, 1652 toys will be assembled in each hour by the company.
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<h3>Answer: Choice B</h3>
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Explanation:
Let's look at choice A
The left hand side simplifies as follows
This means the equation is the same as
. Notice how the left and right sides are identical expressions. They both involve 3x and a 1. This means this equation has infinitely many solutions. We can rule out choice A.
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I'll skip choice B and come back
Let's move onto choice C.
The given equation transforms into
through similar steps as choice A shows.
If we were to subtract 5x from both sides, all of the x terms go away on both sides. We'd be left with the equation which is always false, which means that the original equation is always false.
Therefore, the equation of choice C has no solutions. We consider this equation inconsistent. We rule out choice C because of all this.
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Choice D is pretty much the same as choice A even down to the conclusion of getting infinitely many solutions. The left hand side simplifies fully into the right hand side. The two sides are identical; hence, we have an identity. An identity is true for all allowed x values in the domain.
In other words, whatever x value you pick it will make the equation true. So we can rule this out because we want one solution only.
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Only choice B is left. You'll notice that after simplifying the left hand side, the x term on the left side doesn't turn into 2x. So there's no way to get the options of "infinitely many solutions" or "no solutions". Those two cases only happen when we have the same x terms on both sides.
Put another way, the two slopes of each side are different which produces nonparallel lines that intersect at exactly one location. This intersection location is the solution. Specifically, the x coordinate of the (x,y) location is the solution.