In the box there are 20 toys, but 5 of them are broken. Randomly one after another 2 toys are taken out. What are the chances th
at the 2 taken out toys are broken ?
A - 1/19
B - 3/4
C - 7/16
D - 3/10
A - 1/19
B - 3/4
C - 7/16
D - 3/10
1 answer:
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Answer:
Step-by-step explanation:
This is what is called the Midsegment Theorem, which states that the relation of a triangle's midpunkt is parallel to the triangle's third side, and the mid-segment length is half the third side length, so you would take half of and set that expression equal to the midsegment:
2x + 10 = 3x
-2x - 2x
____________
You then plug this back into both expressions above to get the double-segment of 60 and the mid-segment of 30. We can tell this is correct because 30 and 60 are relatively proportional to each other.
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