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jok3333 [9.3K]
2 years ago
9

Greg has a bag of beads that contains 16 black, 20 red, and 4 white beads. He randomly picks a head places it back into the bag

and then randomly picks another one. What is the probability that he picks a black and white bead?
Mathematics
1 answer:
jasenka [17]2 years ago
8 0

Answer:

4%

Step-by-step explanation:

There are 40 beads in total(16+20+4=40). There are 16 black so the probability of getting a black is 16/40=2/5. Since you put the bead back the bag will still have 40 beads when you pick another one. There are 4 white beads so probability of getting a white is 4/40=1/10. Then we multiply these two probabilities 2/5 * 1/10=1/25=4%.


Note: Order does not matter.

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C minus the quotient of 6 and 3.
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6/3 - c

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The enrollment at Temple Junior High School has a change of ─ 60 over a 3 year period. What is the average change per year?
GaryK [48]

Answer:

- 20

Step-by-step explanation:

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4 0
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Zoey is designing a jewelry box in the shape of a rectangular prism. The base is 6 inches by 5 inches and the height is 4 inches
makvit [3.9K]

Answer:

148 square inches

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Step 1: finding the area of the base (upper base plus lower base)

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Step 2: finding the area of first 2 sides

     2 ( l x w)

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step 3: finding the area of the last 2 sides

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step 4: combine all the answers.

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If point P is 4/7 of the distnace frm M to N, what ratio does the point P partiion the directed line segment from M to N
vredina [299]

Answer: 4:3.

Step-by-step explanation:

Given: Point P is \dfrac{4}{7} of the distance from M to N.

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If Point P is between points M and N, then the ratio can be written as

\dfrac{MP}{MN}=\dfrac{MP}{MP+PN}

As per given,

\dfrac{MP}{MP+PN}=\dfrac{4}{7}\\\\\Rightarrow\ \dfrac{MP+PN}{MP}=\dfrac{7}{4}\\\\\Rightarrow\ \dfrac{MP}{MP}+\dfrac{PN}{MP}=\dfrac{7}{4}\\\\\Rightarrow\ -1+\dfrac{PN}{MP}=\dfrac{7}{4}\\\\\Rightarrow\ \dfrac{PN}{MP}=\dfrac{7}{4}-1=\dfrac{7-4}{4}=\dfrac{3}{4}\\\\\Rightarrow\ \dfrac{PN}{MP}=\dfrac{3}{4}\ \ \or\ \dfrac{MP}{PN}=\dfrac{4}{3}

Hence, P partition the directed line segment from M to N in 4:3.

7 0
3 years ago
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