3 years ago

I really have no clue what to do here (picture didn't post kill me)

Mathematics

1 answer:

aleksley [76]3 years ago

6 0

You just ask questions that you need help with

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you practice the piano for 30 min. each day. Write and solve an equation to find the total time t you spend practicing the piano

Tom [10]

Lets get all the information we need first.
A week has 7 days, you practice 30 min each day, so in a week you will practice a total time t of 30 min for 7 times, that is:
t = 7day(30 min/day)
t = 210 min
So in a week you will practice a total of 210 minutes.

7 0

3 years ago

Read 2 more answers

Need help on this please!

omeli [17]

Answer:

Step-by-step explanation:

7 0

3 years ago

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Simplify the expression <br> 7y+3x+3-2y+6

pishuonlain [190]

Answer:

5y + 3x + 9

Step-by-step explanation:

Whenever something is multiplied by the same variable, you can combine the coefficients. In this case, first you'd move the values with the same variable next to each other, for simplicity:

7y-2y+3x+3+6

Then, combine like terms.

5y+3x+3+6

5y+3x+9

8 0

4 years ago

Hotels, like airline, often overbook, counting on the fact that some people with reservations will cancel at the last minute. A

agasfer [191]

Answer: The required probability is 0.334.

Step-by-step explanation:

Since we have given that

N = 15 reservations

probability of reservations will not be used = 0.2

probability of reservations will be used = 1-0.2=0.8

Let X be the Binomial variable,that the number of reservations canceled.

We need to find the probability that more than 8 but less than 12 reservations.

So, it becomes,

$P(8$

Hence, the required probability is 0.334.

6 0

3 years ago

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Giving out brainiest to the people who help me answer these three questions!!!

professor190 [17]

Answer:

Same question Four times no answer

3 0

2 years ago