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Angelina_Jolie [31]
3 years ago
15

PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!

Mathematics
1 answer:
Alinara [238K]3 years ago
6 0

Answer:  a) 6

<u>Step-by-step explanation:</u>

The mean is 375 which has a z-score of 0.

The standard deviation is 24 so:

  • z-score of 1 is: 375 + 24 = 399
  • z-score of 2 is: 399 + 24 = 423
  • z-score of 3 is: 423 + 24 = 477

A z-score of 3 is 99.85% from the left <em>(or 1 - 99.85% from the right = 0.15%)</em>

Since we are looking for the "more than" a z-score of 3, it is 0.15% of the total.

    4000

<u>× 0.0015</u>

 6.0000

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A company can send a maximum of 40 workers to complete a
rewona [7]

Answer:

20

Step-by-step explanation:

For the sake of the problem, let's make female workers "x" and male workers "y".

x+y<40       This equation shows that the total number of workers has a max of 40.

30x+20y<1,000      This equation shows that the total cost the manager pays ($30 to each woman, $20 to each man) has a max of $1,000.  

Now you can solve for x and y.

X+y<40

-y       -y

X<-y+40

Substitute -y+40 in for X in the second equation

30(-y+40)+20y<1,000      

-30y+1200+20y<1,000         Distribute

-10y+1,200<1,000      Combine like terms

-10y<-200                   Subtract 1,200

y>20                Divide by -10; flip the sign

Since y>20, and y=male workers, you now know that the minimum

number of male workers he should send is 20

4 0
3 years ago
Can someone help me with 42 divided by 9
Gnom [1K]

Answer:

4.6 or if you rounded it would be 5

8 0
3 years ago
Find the constant of variation for the relation and use it to write an equation for the statement. Then solve the equation.
hammer [34]

Answer: option d.

Step-by-step explanation:

If <em>y </em>varies directly as <em>x</em> and <em>z</em>, the form of the equation is:

y=kxz

Where<em> k</em> is the constant of variation.

If y=4 when x=6 and z=1 then substitute these values into the expression and solve for <em>k:</em>

4=k(6)(1)\\4=6k\\k=\frac{4}{6}\\\\k=\frac{2}{3}

<em> </em>Substitute the value of <em>k</em>  into the expression. Then, the equation is:

y=\frac{2}{3}xz

To find the value of <em>y </em>when x=7 and z=4, you must substute these values into the equation. Therefore you obtain:

y=k=\frac{2}{3}(7)(4)

y(7,4)=\frac{56}{3}

<em> </em>

5 0
3 years ago
Read 2 more answers
Do this for me pls its mdths
Vadim26 [7]

Answer:

A = -1

B = -3

C = -7

Step-by-step explanation:

See attached image.

5 0
2 years ago
Round to the nearest hundredth 0.2189
Aleks04 [339]

Answer:

0.22

Step-by-step explanation:

4 or less let it rest, 5 or more add one more!.

8 is greater than 1 so you add one to 1 which equals 2, so your answer would be 0.22

6 0
3 years ago
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