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goldenfox [79]
3 years ago
6

If Mr. Deane's class, 60% of the students are boys. There are 15 boys in the class. What is the total number of students in Mr.

Deane's class?
Mathematics
2 answers:
Elza [17]3 years ago
7 0
There are 25 students. For explanation 60 divided by 15 is 4 so that means that the 40% left over has to be divided by 2 and that would 20 and then from there you add the numbers together
Sergeu [11.5K]3 years ago
3 0

He has 25 student n his class


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3) Which of the following numbers is divisible by 5 and 10 both?
Alex777 [14]

Answer:

I assume you mean that it will not have a decimal;

434,780

Step-by-step explanation:

434780/5= 86,956

434780/10= 43,478

4 0
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Plz answer BRAINLIEST Choose the statement that is true of both triangles.
saw5 [17]

Answer:

b

Step-by-step explanation:

gjhghjghj

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3 years ago
The Intelligence Quotient (IQ) test scores for adults are normally distributed with a population mean of 100 and a population st
adell [148]

Answer: 0.7471

Step-by-step explanation:

Given : The Intelligence Quotient (IQ) test scores for adults are normally distributed with a population mean of \mu=100 and a population standard deviation of \sigma=15.

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Z-value corresponding to x=103 will be:-

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8 0
4 years ago
There are five consecutive odd integers. The sum of the three smallest is 3 more than the sum of the two largest. Find the integ
Cerrena [4.2K]

Answer:

11 13 15 17 19

Step-by-step explanation:

We will solve this word problem using 2k+1 which is one of the general forms of an odd integer.

Let 2k+1 be the first odd integer.

(2k+1) + (2k+3) + (2k +5) =  (2k+7) + (2k +9) + 3 (the +3 is to accommodate for the left side being 3 more than the right)

Solve for k

6k + 9 = 4k + 19

6k - 4k + 9 = 4k-4k + 19

2k + 9 = 19

2k + 9 - 9 = 19 - 9

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2k/2 = 10/2

k = 5

To get the first digit in the series plug in 5 for k

2k+1

2(5) + 1

10 + 1 = 11

So our series is 11, 13, 15, 17, 19

Let's test it.

11 + 13 +15 = 39

17 + 19 = 36

So we are correct, the first 3 integers are 3 more that the sum of the last 2.

6 0
3 years ago
traveling at 65 miles per hour, how many minutes rounded to the nearest whole number, does it take to drive 125 miles from San D
Anika [276]

65 miles per hour meaning 65 miles in 60 minutes

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check

115.4 x 1.083 = 124.97 (round up)

= 125

therefore it takes 115.4 minutes to drive from San Diego to Malibu

3 0
4 years ago
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