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3 years ago

Choose a number between 61 and 107 that is a multiple of 4,5, and 10

2 answers:

8 0

$4|2 \\ 2|2 \\ 1 \\ 4=2^2\\ \\ 5|5 \\ 1 \\ \\ 10|2 \\ 5 \ |5 \\ 1 \\ \\ 10=2*5 \\ \\ \ [ 4;5;10 \ ]=2^2*5=4*5=20 \\ \\ 61 < M _{20} < 107 \\ \\\boxed{ M_{20}= \{ 80;100 \}}$

nevsk [136]3 years ago

7 0

$4\times5=20-is\ a\ multiple\ of\ 10\\\\20\times4=\boxed{80}\\\\20\times5=\boxed{100}$

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In a recent year, a sample of grade 8 Washington State public school students taking a mathematics assessment test had a mean sc

Daniel [21]

Answer:

The number is $N =1147$ students

Step-by-step explanation:

From the question we are told that

The population mean is $\mu = 281$

The standard deviation is $\sigma = 34.4$

The sample size is n = 2000

percentage of the would you expect to have a score between 250 and 305 is mathematically represented as

$P(250 < X < 305 ) = P(\frac{ 250 - 281}{34.4 } < \frac{X - \mu }{\sigma } < \frac{ 305 - 281}{34.4 } )$

Generally

$\frac{X - \mu }{\sigma } = Z (Standardized \ value \ of \ X )$

$P(250 < X < 305 ) = P(-0.9012< Z$

$P(250 < X < 305 ) = P(z_2 < 0.698 ) - P(z_1 < -0.9012)$

From the z table the value of $P( z_2 < 0.698) = 0.75741$

and $P(z_1 < -0.9012) = 0.18374$

$P(250 < X < 305 ) = 0.75741 - 0.18374$

$P(250 < X < 305 ) = 0.57$

The percentage is $P(250 < X < 305 ) = 57\%$

The number of students that will get this score is

$N = 2000 * 0.57$

$N =1147$

6 0

3 years ago

A loss of 30 yards is less than a loss if 50 yards. Write an equality statement

Dafna1 [17]

100-30=70-50=20
there's your equation

8 0

3 years ago

An auto insurance company has 10,000 policyholders. Each policy is defined as: young or old male or female; and married or singl

Blababa [14]

Answer:

880

Step-by-step explanation:

This problem a bit annoying, but let's classify the numbers and see where we can get from there:

Total = 10,000

Young = 3,000

Old = 7,000 (not young defined as 10,000 - 3,000)

Male = 4,600

Female = 5,400

Married = 7,000

Single = 3,000

Young Males = 1,320

Young Females = 3,000 (young) - 1,320 = 1,680

Married Males = 3,010

Married Females = 7,000 - 3,010 = 2,990

Young Married = 1,400

Young Married Males = 600

Young Married Females = 1,400 - 600 = 800

Young Female Single = ?

Young Female = 1,680 from above. But not all of them are single.

Young Married Females = 800 from above

Young Female Single = Young Female - Young Married Females = 1,680 - 800 = 880

6 0

3 years ago

Hi i have a question for people with thick curly hair..

Alexxandr [17]

Answer:

rice water

Step-by-step explanation:

if u want your hair to grow try the rice water technique, wear braids, and dont put alot of heat,

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3 years ago

I need help in solving this, I dont want an answer. 10. The Wilson family had a family portrait framed for their living room. Th

ollegr [7]

So to find an area of a square is length times width. 45 times 37 =1665inches now convert that to ft and that’s your answer!
Hope this helps!

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3 years ago