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Anarel [89]
3 years ago
5

Of a classroom filled with 20 students, 2 will be selected to stay after school and correct homework for extra credit. How

Mathematics
2 answers:
babymother [125]3 years ago
5 0

Answer:

10 pair

Step-by-step explanation:

20/2=10

10 pairs of students staying after school for extra credit

Tcecarenko [31]3 years ago
3 0

Answer: 10

Step-by-step explanation:

20/2=10

pairs of two

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Betty picks 4 random marbles from the bowl containing 3 white, 4 yellow, and 5 blue marbles
olasank [31]
There are 12 marbles in total in the bowl.
From this bowl, we will choose 4 marbles at random.
That's 12C4 or (12*11*10*9) or 11,880 ways

Out of this, what is the probability that there is exactly 1 blue marble.
There are 5 blue balls but only 1 is selected, 5C1 ways
The rest except blue calls are 7, but only 3 slots are left, 7C3 ways

The probably of exactly 1 blue of 4 marbles is then 5C1*7C3/12C4 = 1050/11,880 = 0.0884 or 8.84%

Hope this helps:) would appericate brainliest thanks

4 0
2 years ago
Read 2 more answers
Dylan and his children went into a grocery store and where they sell peaches for $1 each and mangos for $0.50 each. Dylan has $1
mafiozo [28]

Answer:

8 mangoes

Step-by-step explanation:

1) lets create 2 systems of inequalities

where m=# of mangoes

            p=# of peaches

so m+p≥15 and 1m+0.5p≤15

lets substitute "13" in  the m+p inequality to see how many mangoes dylan can buy:

m+(13)≥15

subtract "13" from both sides:

m≥2

now we substitute "13" in the other inequality:

m+0.5(13)≤15

m+6.5≤15

subtract 6.5 from both sides:

m≤8.5

m≥2 and m≤8.5

seeing our restriction, we can buy 8 mangoes (since we can't have 1/2 a mango)

hope this helps!

3 0
3 years ago
A bag has 3 red marbles, 3 blue, 4 green and 2 yellow. What is the theoretical probability of pulling a red marble?
svetlana [45]

Answer:

Fraction: \frac{1}{4}

Decimal: 0.25

Percentage: 25%

Step-by-step explanation:

Have a good day :)

4 0
3 years ago
I asked some friends how old they think they will be when they get married. Here are their answers:
Talja [164]

Answer:

27,29,38,39,42,52,53

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
1) त्रिभुज LOK को क्षेत्रफल पत्ता लगाउनुहोस् । जहाँ
siniylev [52]

Answer:

hope this helps you.keep it up..

7 0
2 years ago
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