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Ymorist [56]
4 years ago
14

Multiply 4 and then divide the product by 5

Mathematics
1 answer:
Marysya12 [62]4 years ago
3 0
1st step
let the number be x to which we have to multiply
so, it is said that multiply by 4 ao we will get,
4* x
so 4x is our product
than it is said that divide the product by 5 so we will get,
4x/5and this is our final answer
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A school debate team has four girls and six boys. A total of four of the team members will be chosen to participate in the distr
alex41 [277]
Procedure:

1) calculate the number of diferent teams of four members that can be formed (with the ten persons)
2) calculate the number of teams tha meet the specification (two girls and two boys)
3) Divide the positive events by the total number of events: this is the result of 2) by the result in 1)

Solution

1) the number of teams of four members that can be formed are:

10*9*8*7 / (4*3*2*1) = 210

2) Number of different teams with 2 boys and 2 girls = ways of chosing 2 boys * ways of chosing 2 girls

Ways of chosing 2 boys = 6*5/2 = 15
Ways of chosing 2 girls = 4*3/2 = 6

Number of different teams with 2 boys and 2 girls = 15 * 6 = 90

3) probability of choosing one of the 90 teams formed by 2 boys and 2 girls:

90/210 = 3/7
 
7 0
3 years ago
Michael earns
Vesnalui [34]

Answer:

$1512

Step-by-step explanation:

$9/hr * 28hr/week * 6week

=$1512/week

7 0
4 years ago
Read 2 more answers
Evaluate the expression 25+10.2×4-2
JulijaS [17]

Answer:

Answer: 51x45+23=10.2x4+23

Step-by-step explanation:


6 0
3 years ago
Scientists have discovered a vaccine for a debilitating disease. This year there were 570,000 reported new cases of the disease
Ket [755]

Answer: There are approximately 853827 new cases in 6 years.

Step-by-step explanation:

Since we have given that

Initial population = 570000

Rate at which population decreases is given by

\frac{2}{3}

Now,

First year =570000

Second year is given by

570000\times (\frac{1}{3})

Third year is given by

570000(\frac{1}{3})^2

so, there is common ratio ,

it becomes geometric progression, as there is exponential decline.

so,

570000,570000\times \frac{1}{3},570000\times( \frac{1}{3})^2,......,570000\times (\frac{1}{3})^6

a=570000

common ratio is given by

r=\frac{a_2}{a_1}=\frac{1}{3}

number of terms = 6

Sum of terms will be given by

S_n=\frac{a(1-r^n)}{(1-r)}

We'll put this value in this formula,

S_6=\frac{570000(1-(\frac{1}{3})^6}{(1-\frac{1}{3})}\\\\=853827.16

So, there are approximately 853827 new cases in 6 years.

6 0
3 years ago
Formula lui paralelipiped.
Scorpion4ik [409]
V=abc
a=2(ab+act+bc)

hope it helps
8 0
4 years ago
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