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3 years ago

7

Of the 8 planets is our solar system, 4 are considered rocky. If a student randomly selects 1 of those 8 planets as topic for a

report, what is the probability that the selected planet will be rocky

1 answer:

Karo-lina-s [1.5K]3 years ago

5 0

Answer:

50%

Step-by-step explanation:

He has a 4/8 that he picks a rocky and a 4/8 that he doesn't. That gives us 1/2 and 1/2. 1/2=0.5 0.5×100%=50%

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Two times a number plus four is 22. What is the number

LiRa [457]

Use the expression to solve for the number.

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The number is 9.

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3 years ago

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allochka39001 [22]

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3 years ago

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Paha777 [63]

Answer:

n=3

Step-by-step explanation:

So the question we are to solve is to be solved by collecting like terms and by division

So let's solve the question

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So let's solve

-5n+8=-7

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So let's make n the subject of formula by dividing both sides by -5

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Therefore the final answer for the given question is 3

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3 years ago

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V125BC [204]

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Usimov [2.4K]

Answer:

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Step-by-step explanation:

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