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Genrish500 [490]
3 years ago
13

Solve the equation 3x/3x-1 + 2/x = 1

Mathematics
1 answer:
lara [203]3 years ago
6 0

Answer:

2/7=0.285714

Step-by-step explanation:

  1. 3x/3x-1+2/x=1
  2. 3x2+2(3x-1)/xx(3x-1)=1
  3. 3x2+6x-2/xx(3x-1)=1
  4. 3x2+6x-2=xx(3x-1)
  5. 3x2+6x-2=3x2-x
  6. 6x-2=-x
  7. 6x=-x+2
  8. 6x+x=2
  9. 7x=2
  10. x=2/7=0.285714
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Jeff and his friends win a prize.
Anit [1.1K]

Answer:

Prize, P = $352

Step-by-step explanation:

  • Let Jeff's share be J.
  • Let the value of the prize be P.

<u>Given the following data;</u>

  • J = $160
  • J = 5P/11

To find the value of the prize;

\frac {5}{11} * P = 160

\frac {5P}{11} = 160

Cross-multiplying, we have;

5P = 160 * 11

5P = 1760

P = \frac {1760}{5}

<em>Prize, P = $352</em>

8 0
3 years ago
Hey guys I need help with this exercise!!! PLZZZ HELP!
IRISSAK [1]

Answer:

365

Step-by-step explanation:

The discount is 30 %

That means we pay 70 %

original price * 70% = 255.50

Change to decimal form

original price * .70 = 255.50

divide each side by .70

original price * .70/.70 = 255.50/.70

original price =365

6 0
3 years ago
Neeed Help ASAP Quick
Andrew [12]

Answer:

4; 7

Step-by-step explanation:

Small box = 25 and Large box = 50

small box = x and large box = x+3

25x+50(x+3)=450

25x+50x+150=450

75x=300

x=4

Large box = 4+3 = 7

Therefore, 4; 7

I hope this helped and have a good rest of your day!

3 0
3 years ago
Perform the operation and write the answer in simplest form. 2 1/5 ÷ 31/5
Vinil7 [7]

<u>Answer:</u>

\frac{11}{31}

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

We are given the following expression and we are to perform operation and write the answer in simplest form:

\frac { 2 \frac { 1 } { 5 } } { \frac { 31 } { 5 } }

Changing the mixed fraction into improper fraction:

2\frac{1}{5} ---> \frac{11}{5}

Now simplifying it:

\frac { \frac { 1 1 } { 5 } } { \frac { 31 } { 5 } }

Changing the division sign to multiplication by taking the reciprocal of the denominator:

\frac{11}{5} \times \frac{5}{31}

\frac{11}{31}

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3 years ago
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