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juin [17]
3 years ago
9

18 first-graders and 72 other students attended a school assembly. What percentage of the students at the assembly were first-gr

aders?
Mathematics
2 answers:
denis23 [38]3 years ago
6 0

Answer:20%

Step-by-step explanation:

You add 72 plus 18 and get 100 then you find what 100 divided by 5 is.

Bumek [7]3 years ago
4 0

Answer:

20%

Step-by-step explanation:

72+18=90

18/90=.2

20%

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The space shuttle flight control system called PASS (Primary Avionics Software Set) uses four independent computers working in p
tigry1 [53]

Answer:

f_X(k)=\binom{4}{k}0.003^k0.997^{4-k}

Step-by-step explanation:

Recall that a <em>probability mass function</em> defined on a discrete random variable X is just a function that gives the probability that the random variable equals a certain value k

f_X(k)=P(X=k)

In this case we have the event  

“The computer will ask for a roll to the left when a roll to the right is appropriate” with a probability of 0.003.

Then we have 2 possible events, either the computer is right or not.

Since we have 4 computers in parallel, the situation could be modeled with a binomial distribution and the probability mass function

f_X(k)=\binom{4}{k}0.003^k0.997^{4-k}

This gives the probability that k computers are wrong at the same time.

6 0
3 years ago
The lunch special at the pizza shop is two slices of pizza for $5.00
maw [93]
30$ is the answer bc if you take 6x 5 = 30
8 0
3 years ago
Read 2 more answers
Write 1.49 x 10^-7 in standard form
Eduardwww [97]

Answer:

1.49

Step-by-step explanation:

1.49 \times 0.0000001 = 0.000000149 = 1.49

in this problem you also need to use scientific notation period to do scientific notation you need to go to the first non-zero digit after the decimal . and in this case that is one next thing you do is put the next numbers after the decimal that you just put in front of the one which is 49 in this case and that gives you your answer of 1.49

6 0
4 years ago
John grosses $27,000 a year. What is his gross weekly wage?
goldfiish [28.3K]

Answer:

519.23

Step-by-step explanation:

There are 52 weeks in a year

Take the yearly wage and divide by the number of weeks to get a weekly wage

27000/52

519.23

4 0
4 years ago
Which time is 4 hours and 34 minutes later than 00:15?​
nata0808 [166]

Answer:

4:49

Step-by-step explanation:

00:15 + 4 hours = 4:15

4:15 + 34 minutes = 4:49

Overall the answer is 4:49

8 0
2 years ago
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