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polet [3.4K]
3 years ago
9

Solve: 2/v+1/5=3/w for w

Mathematics
1 answer:
Norma-Jean [14]3 years ago
5 0

Answer:

Step-by-step explanation:

2/v+1/5=3/w

(10+v)/5v=3/w

w(10+v)=15v

w=15v/(10+v)

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Please help I’ll mark you as brainliest if correct!
romanna [79]

Answer:

The wright answer is 16.33 inches

4 0
3 years ago
Ben and Josh went to the roof of their 40-foot tall high school to throw their math books off the edge.
krok68 [10]

Answer:

  • Josh's book lands first
  • Ben's lands about 0.648 seconds later

Step-by-step explanation:

Using the given equation for v=60 and s=40, the height of Ben's book is ...

  h(t) = -16t² +60t +40

We want to find t when h(t) = 0, so we're looking for the solution to ....

  0 = -16t² +60t +40

Using the quadratic formula, we find the positive value of t to be ...

  t = (-60 -√(60² -4(-16)(40)))/(2(-16)) = (15 +√385)/8 ≈ 4.3277

__

Similarly, the height of Josh's book is ...

  0 = -16t² +48t +40

  t = (-48 -√(48² -4(-16)(40)))/(2(-16)) = (12 +√304)/8 ≈ 3.6794

__

The time before Josh's book lands is shorter by ...

  4.3277 -3.6794 ≈ 0.6482 . . . . . seconds

Josh's book reaches the ground first, by about 0.648 seconds.

3 0
3 years ago
Plz help!!!!!!!!!!!!!
vaieri [72.5K]

Answer:  The correct answer is -2,5/2 which is the last answer.

Step-by-step explanation:

* Hopefully the work below helps:)Mark me the brainliest:)!!

6 0
3 years ago
Read 2 more answers
PLZZZZZZZZZZZZZZZZZZZZZZZZZ HELP!!!
NISA [10]

Answer:

Step-by-step explanation:

Instead of dividing both sides by 5, it is multiplied

5x + 3 = 6            {Subtract 3 from both sides}

5x + 3 - 3 = 6-3

            5x = 3       {Divide both sides by 5}

           5x/5 = 3/5

                 x = 3/5

8 0
3 years ago
Help me!!!!!! Hanger math..
Gekata [30.6K]

Answer:x=3

Step-by-step explanation:

Equation:

5x+2=17

5x=15

x=3

5 0
3 years ago
Read 2 more answers
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