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sveticcg [70]
3 years ago
14

Make r the subect of the formula t=r/r-3

Mathematics
1 answer:
Nesterboy [21]3 years ago
3 0

\bf t = \cfrac{r}{r-3}\implies t(r-3)=r\implies \stackrel{\textit{distributing}}{tr-3t}=r\implies -3t=r-tr \\\\\\ -3=\stackrel{\textit{common factor}}{r(1-t)}\implies \cfrac{-3}{1-t}=r

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Guys this Question is about system of equation word problem <br><br> please assist me !
Oksanka [162]
Let f and s represent the weights of the first and second objects, respectively.
.. f - s = 200 . . . . . . . . the first is 200 lb heavier than the second
.. s = (1/3)f . . . . . . . . . . the second was 1/3 the weight of the first

In augmented matrix form, the equations can be written
.. f - s = 200
.. f - 3s = 0

The solution is
.. f = 300
.. s = 100
Their total weight is 400 lb, not enough to kill Mr. Boddy. The physics-loving professor is apparently innocent.

4 0
3 years ago
Evaluate Each Function:
KengaRu [80]

Answer:

  • C. - 3 + 1/3x

Step-by-step explanation:

<u>Given</u>

  • p(x)=x - 3

<u>Find </u>

  • p(x/3)

<u>Substitute x with x/3:</u>

  • p(x/3) = x/3 - 3 = -3 + 1/3x

Correct choice is C.

4 0
3 years ago
I need help with my homework ​
yarga [219]

Answer:

where's the question.........

8 0
3 years ago
What is the value of a in the equation 5 a minus 10 b equals 45, when b equals 3?
PilotLPTM [1.2K]

Answer:

15

Step-by-step explanation:

5a - 10b = 45

5a - (10×3) = 45

5a - 30 = 45

5a = 45 + 30

5a = 75

a = 15

3 0
3 years ago
What is negative to positive 60+ (-32)
GuDViN [60]
The answer to the question is 28
but if you want negative, then its -28
7 0
3 years ago
Read 2 more answers
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