Corrine has 24 books. she donates 1/4 of her books to the library how many books did corrine donate?
2 answers:
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Answer:
is the correct representation of the graph.
Step-by-step explanation:
Firstly, if we look at the y-intercept, we can see that it is 25.
This means that we have narrowed down the options to the first and the second.
Next, our graph has a solid line. This means that we must have a sign.
This means that the inequality is the correct representation of the graph.
We have three similar triangles, because each has a right angle and shares an angle. Let's write the angles in order: opposite to short leg, long leg, hypotenuse.
CAB similar to BAD similar to CBD
Or as ratios,
CA:AB:CB = BA:AD:BD = CB:BD:CD
We also know
AC = AD + CD
(AD+CD):AB:CB = BA:AD:BD = CB:BD:CD
(AD+CD)/CB=CB/CD
We have CB=6, AD=5 and seek x=CD.
We reject the negative root and conclude x=4
Answer: 4