If the value of 6 coins is $0.56, what are the coins?
1 answer:
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Hey there!
when x = 3 and y = 9
Let's first move to x and y.
Now multiply 5 by x and y(3+9).
Now we have the number 2 left, so we have to multiply 60 by 2.
Hope this helps!
Answer:
21 cm
Step-by-step explanation:
Call the triangle ABC, with the right angle at B, the hypotenuse AC=25, and the given leg AB=10. The altitude to the hypotenuse can be BD. Since the "other leg" is BC, we believe the question is asking for the length of DC.
The right triangles formed by the altitude are all similar to the original. That means ...
AD/AB = AB/AC . . . . . . ratio of short side to hypotenuse is a constant
Multiplying by AB and substituting the given numbers, we get ...
AD = AB²/AC = 10²/25
AD = 4
Then the segment DC is ...
DC = AC -AD = 25 -4
DC = 21 . . . . . centimeters
