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mash [69]
3 years ago
11

Of the 15 children at the park, 12 children are riding bicycles and 3 children are riding

Mathematics
2 answers:
cluponka [151]3 years ago
5 0

Answer:

A, B, C,

Step-by-step explanation

A, B, C are all true.

A: bicycle to scooters is 12:3

B: scooters to children is 3:15

C: bicycles to children is 12:15

anygoal [31]3 years ago
3 0

Answer:

A,B,C

Step-by-step explanation:

if it is wrong correct me

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Suppose you have 60 red marbles and 40 blue marbles in a
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Answer:  The required probability is 0.26.

Step-by-step explanation: Given that there are 60 red marbles and 40 blue marbles in a  box 10 marbles are picked without replacement.

We are to find the probability of selecting 6 red marbles.

Since the marbles are picked up without replacement, so it is a situation of combination.

Let S denote the sample space of the experiment of drawing 10 marbles and E denote the event that 6 marbles are red.

So,

n(S)=^{100}C_{10}=\dfrac{100!}{10!(100-10)!}=\dfrac{100!}{10!90!}=17310309456440,\\\\\\n(E)=^{60}C_6\times^{40}C_4=\dfrac{60!}{6!54!}\times\dfrac{40!}{4!36!}=50063860\times91390.

Therefore, the probability of event E is given by

P(E)=\dfrac{n(E)}{n(S)}=\dfrac{50063860\times91390}{17310309456440}=0.26.

Thus, the required probability is 0.26.

6 0
3 years ago
This week laptops are 25% off. If a laptop costs $340, what is its sale price?
Juli2301 [7.4K]

Answer:

$25

Step-by-step explanation:

i have an odd method of solving these types of equations

25x=100

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5 0
3 years ago
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What is the least common multiple of 10 and 7?
alexgriva [62]

Answer:

70 is the least common multiple of 10 and 7

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Data Set #1
Harman [31]

Answer:

The data table is attached below.

Step-by-step explanation:

The average of a set of data is the value that is a representative of the entire data set.

The formula to compute averages is:

\bar x=\frac{1}{n}\sum\limits^{n}_{i=1}{x_{i}}

Compute the average for drop 1 as follows:

\bar x_{1}=\frac{1}{3}\times[10+11+9]=10

Compute the average for drop 2 as follows:

\bar x_{2}=\frac{1}{3}\times[29+31+30]=30

Compute the average for drop 3 as follows:

\bar x_{3}=\frac{1}{3}\times[59+58+61]=59.33

Compute the average for drop 4 as follows:

\bar x_{4}=\frac{1}{3}\times[102+100+98]=100

Compute the average for drop 5 as follows:

\bar x_{5}=\frac{1}{3}\times[122+125+127]=124.67

The data table is attached below.

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3 years ago
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marishachu [46]

2: c

Step-by-step explanation:

3: a

by Supplementing each answer Into the equation

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