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ki77a [65]
2 years ago
9

Make x the subject. help please

Mathematics
2 answers:
bezimeni [28]2 years ago
7 0

Answer:

x = \frac{N-2MP}{2M}

Step-by-step explanation:

3M = M + \frac{N}{P+x} ( subtract M from both sides )

2M = \frac{N}{P+x} ( multiply both sides by P + x to clear the fraction )

2M(P + x) = N ← distribute parenthesis on left side

2MP + 2Mx = N ( subtract 2MP from both sides )

2Mx = N - 2MP ( divide both sides by 2M )

x = \frac{N-2MP}{2M}

valkas [14]2 years ago
4 0

Answer:

\sf x = \dfrac{n - 2mp}{2m}

Step-by-step explanation:

              \sf 3m = m + \dfrac{n}{p + x}\\

        \sf 3m - m = \dfrac{n}{p +x}

                \sf 2m = \dfrac{n}{p +x}

Now cross multiply,

          2m*(p +x) = n

To open the parenthesis, multiply 2m by p and x.

        2mp + 2mx = n

 Isolate the term with variable 'x'

                    2mx = n - 2mp

Now, isolate 'x', by dividing both sides by 2m

                          \sf  x = \dfrac{n-2mp}{2m}                            

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I need help again yall
12345 [234]

Answer: 4z + 28

Step-by-step explanation:

We can distribute the 4 to each term inside the parenthesis.

So 4(z+7) = 4*z + 4*7

= 4z + 28

6 0
2 years ago
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A detective finds a victim of murder at 9 am. At that time, the temperature of the body is 90.3 degrees F. One hour later, the b
LekaFEV [45]

Answer:

Step-by-step explanation:

Given

at 9 am temperature of the body is 90.3^{\circ}F

1 hr later temperature 89^{\circ}F

Temperature of room T=68^{\circ}F

According to newtons law

\frac{\mathrm{d} T}{\mathrm{d} t}=-k\left ( T-T_{room}\right )

\frac{\mathrm{d} T}{\mathrm{d} t}=-k\left ( T-68\right )

\frac{dT}{T-68}=-kdt

Integrating

=\int \frac{dT}{T-68}=-kdt

\ln |T-68|=-kt+c

T-68=Ae^{-kt}

Now at 9 am i.e. t=0,

90.3=A+68

A=22.3

At 10 am i.e. t=1 hr T=89

89-68=22.3e^{-k}

e^{-k}=21

k=0.06006

Temperature of Normal human body is T=98.6 ^{\circ}F

98.6-68=e^{-0.06006t}

30.6=e^{-0.06006t}

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t=-5.27

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7 0
3 years ago
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Viktor [21]

Answer:

c is the correct answer

5 0
2 years ago
How to solve this problem by classifying systems of equations<br> 3x+4y=36<br> -5x=35-3y
marissa [1.9K]

Answer:

x=-32/29

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Step-by-step explanation:

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-5x+3y=35 Equation 2

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Subtracting equation 3 from equation 4 we obtain

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x=-32/29

To find the value of y, we substitute the value of x into equation 2 as initially given in the equation

-5(-32/29)=35-3y

-5(-32/29)-35=-3y

y=9\frac {24}{29}

7 0
3 years ago
Write the prime factorization of 10. Use exponents when appropriate and order the factors from least to greatest (for example, 2
inna [77]

Answer:

2 x 5

Step-by-step explanation:

in prime factorization, we divide until it gets to 1. In the case of 10 divide by 2 which will give you 5 divide by 5. Thats how I got 2 x 5

6 0
3 years ago
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