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Sedbober [7]
4 years ago
7

PLS HEEEEEEEEEELP MEEE GUARANTEE REWARD PLSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS.The SAT this year has a mean of 5

00 and a standard deviation of 50. What percent of students scored between 400 and 600?
Mathematics
1 answer:
Paraphin [41]4 years ago
6 0
95% of the students will score between 400 and 600, because you use a bell shaped graph and normal distribution to put the variables in the bottom. The graph i attached should help. So the answer is 95% of the students will score between 400 and 600. Hope this helped, and by the way I am a girl, not a poly whatever guy like that person said lol. 
Download pdf
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A local salesman receives a base salary of $975 monthly. He also receives a commission of 7% on all sales over $1250. How much w
slava [35]

Answer:

  $17,321.43

Step-by-step explanation:

The amount of monthly income from commissions would have to be ...

  $2100 -975 = $1125

This is 7% of sales over $1250, so the sales (s) would need to be ...

  1125 = 0.07(s -1250)

  1125 = .07s -87.50 . . eliminate parentheses

  1212.50 = 0.07s . . . . add 87.50

  17,321.43 = s . . . . . . . divide by 0.07

He would have to sell $17,321.43 in a month if he needed an income of $2100.

8 0
3 years ago
What are the numbers of pi \pi help due Friday
ohaa [14]

Answer: 3.14285714.....

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

pi is  \dfrac{22}{7}

.\quad \underline{\ 3.14285714}\\.\ 7)22.0000000\\.\ \ \underline{-21}\\.\qquad 10\\.\qquad \underline{- 7}\\.\qquad\ \ 30\\.\quad\ \ \ \underline{-28}\\.\qquad \ \ \ 20\\.\quad\ \quad \underline{-14}\\.\qquad \quad \ \ 60\\.\qquad \quad \underline{-56}\\.\qquad \qquad \ 4

Thiis is a non-terminating and non-repeating decimal.

8 0
3 years ago
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GREYUIT [131]
Answer is 2(x,y) —> (3x, 3y)
6 0
3 years ago
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Solve the systems of equations. <br>​
rewona [7]

Answer:

x = -1 and y = -1

Step-by-step explanation:

Solve 3x+3y=−6;−x+y=0

Steps:

I will solve your system by substitution.

−x+y=0;3x+3y=−6

Step: Solve−x+y=0for y:

−x+y+x=0+x(Add x to both sides)

y=x

Step: Substitutexforyin3x+3y=−6:

3x+3y=−6

3x+3x=−6

6x=−6(Simplify both sides of the equation)

6x

6

=

−6

6

(Divide both sides by 6)

x=−1

Step: Substitute−1forxiny=x:

y=x

y=−1

Answer:

x=−1 and y=−1

8 0
4 years ago
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Help ?? ;;
garik1379 [7]

Answer: It's the top left because the line passes through 10 on the y axis.

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