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Ierofanga [76]
3 years ago
8

John has 4 dimes and 8 quarters in a box. Find the probability of drawing a dime.

Mathematics
1 answer:
weqwewe [10]3 years ago
8 0
The probability that an event occurs is the number of times it could occur compared to the total number of possible events, assuming the probability of each event occurring is equal.

John has 4+8=12 coins total. If 4 of the coins are dimes, the probability that he draws a dime is \frac{4}{12}=\frac{1}{3}\approx 33\% \approx 0.33.
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Please help with this question asap
stepladder [879]

Pythagoras theorem: leg 1 squared + leg 2 squared = hypotenuse squared

In the diagram, the triangle has angles 90 and 45. So the other angle in the triangle must be 45 degrees as well.  (180 - 90 -45 = 45)

This means it is an isosceles triangle (since two angles are the same), so the two legs have the same length.

So we can say that length of leg1 = x, and the length of leg2 also equals x

Now let's use pythagoras' theorem:

leg1 = x

leg2 = x

hypotenuse = 16

x^2 + x^2 = 16^2

      2x^2 = 16^2

      2x^2  = 256

        x^2 = 128

        x = √(128)

        x = 8√2

3 0
4 years ago
Can someone help me with this pls, is super important
Alex17521 [72]
X = 50 degrees
y = 50 degrees

Explanation:

x + 130 = 180 (Angles between parallel lines)
x = 50

y = x = 50 (Corresponding angles)
7 0
3 years ago
Convert 2% to a decimal
nalin [4]

Answer: 0.02

Step-by-step explanation: Divide 2 by 100

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zysi [14]

Answer:

85

Step-by-step explanation:

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4: From each corner of a square table a quarter of a circle is cut off. The sides of the square table are 5 cm. Each of the circ
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The figures were not drawn to scale.

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