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STALIN [3.7K]
4 years ago
13

19x+rx= -37x+w what is the x

Mathematics
1 answer:
seraphim [82]4 years ago
5 0

Answer:

x = w / (56 + r)

Step-by-step explanation:

Given the equation :

19x + rx= -37x + w ; find x

Collecting like terms

19x + rx + 37x = w

Factorizing x in the Left hand side

x(19 + 37 + r) = w

x(56 + r) = w

Therefore we can obtain x by dividing both sides by (56 + r)

x(56 + r) / (56 + r) = w / (56 + r)

x = w / (56 + r)

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Which equation show the distributive property applied to (7+a)8
Verizon [17]

Answer:

so the answer is B

Step-by-step explanation:

(7 + a)8 \\  = 56 + 8a  \\

3 0
3 years ago
Sound City sells the ClearTone-400 satellite car radio. For this radio, historical sales records over the last 100 weeks show 5
Harman [31]

Answer:

μ =2.23

\sigma_x^2= 1.49

\sigma_x=1.22

Step-by-step explanation:

Radio(x)                            weeks                           P(x)

0                                         5                                 5/100 = 0.05

1                                           27                               27/100=0.27

2                                          27                                 27/100 = 0.27

3                                         27                                 27/100 = 0.27  

4                                           9                                    9/100=0.09

5                                             5                                    5/100=0.05

We know that

Mean ,μ

\mu =\sum x.P(x)

μ = 0 x 0.05 + 1 x 0.27 + 2 x 0.27 + 3 x 0.27 + 4 x 0 .09 + 5 x 0.05

μ =2.23

\sigma_x^2= \sum x^2\times P(x)-(\sum x.P(x))^2

\sigma_x^2= 0^2\times 0.05+ 1^2\times 0.27+ 2^2\times 0.27+ 3^2\times 0.27+ 4^2\times 0.09+5^2\times 0.05-2.23^2

\sigma_x^2= 1.49

\sigma_x= \sqrt{\sigma_x^2}

\sigma_x=1.22

7 0
4 years ago
Question 2
Dominik [7]

Answer:

99

Step-by-step explanation:

Question 2

What is the value of y in the equation 2(3y - 6) = 0? (4 points)

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02

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3 0
4 years ago
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Help please!!! thanks
Rom4ik [11]

Answer:

27

Step-by-step explanation:

first we can simplify by dividing by r

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the r on the bottom of the fraction will cancel out one of the r's on top, this happens because anything divided by itself is 1, thus r divided by r is 1

finally we can evaluate when r =3,

9r = 9(3) = 27

3 0
3 years ago
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Ksivusya [100]
Unit Form Is

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6 0
3 years ago
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