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docker41 [41]
4 years ago
5

The probability of rolling a number less than 3 on a number cube is 2/6 . Jennifer rolls a number cube 60 times. How many times

should Jennifer expect to roll a number less than 3
Mathematics
1 answer:
kompoz [17]4 years ago
6 0

Answer:

20 times

Step-by-step explanation:

2/6

she rolls it 60 times so it turns into

2/6 = x/60

60*2 = 120

60/120 = 20

so

2/6 = 20/60

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If n+h/5=f+9/9, then n/5=
Ann [662]
------------------------------------------------------------------
Question
------------------------------------------------------------------
\boxed { \frac{n+h}{5}  =  \frac{f+9}{9}}

------------------------------------------------------------------
Split the fraction on the left
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\boxed { \frac{n}{5} + \frac{h}{5}  = \frac{f + 9}{9}}

------------------------------------------------------------------
Take away h/5 from both sides
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\boxed { \frac{n}{5}  = \frac{f+9}{9} - \frac{h}{5}}

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Change the denominator to be the same
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\boxed { \frac{n}{5} = \frac{5f+45}{45} - \frac{9h}{45}}

------------------------------------------------------------------
Put it into single fraction
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\boxed { \frac{n}{5} = \frac{5f+45-9h}{45} }

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Rearrange (This step may not be necessary)
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\boxed {\frac{n}{5} = \frac{5f-9h+ 45}{45} }


\bf \Longrightarrow \ Answer \ : \boxed {\boxed {\frac{n}{5} = \frac{5f-9h+ 45}{45} }}

6 0
3 years ago
Which expression can be used to determine the length of segment AB? On a coordinate plane, triangle A B C has points (4, 3), (ne
JulijaS [17]

Answer:

StartRoot 2 squared + 6 squared EndRoot

Step-by-step explanation:

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we know that

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substitute the given values

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AB=\sqrt{40}\ units

therefore

StartRoot 2 squared + 6 squared EndRoot

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elena55 [62]
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