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sattari [20]
3 years ago
15

A riverboat took 2 hours to travel down river with current and 3 hours to make the return trip against the current. Find the spe

ed of the boat in still water and the speed of the current
Mathematics
1 answer:
Pavlova-9 [17]3 years ago
3 0

Answer:

Speed with current = X/2hrs

Speed against current= X/3hrs

Step-by-step explanation:

Speed = distance/time

Let the distance be X

Speed with current = X/2hrs

Speed against current= X/3hrs

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Solve the inequality:<br> 16 &lt; -2(x + 4)
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Answer:

x < -12

General Formulas and Concepts:

<u>Pre-Algebra</u>

Distributive Property

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Step-by-step explanation:

<u>Step 1: Define</u>

16 < -2(x + 4)

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Distribute -2:                          16 < -2x - 8
  2. Add 8 to both sides:             24 < -2x
  3. Divide -2 on both sides:       -12 > x
  4. Rewrite:                                 x < -12

Here we see that any number <em>x</em> smaller than -12 would work as a solution to the inequality.

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Step-by-step explanation:

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To write this polynomial, write -4x^3 as your first term. Its leading coefficient is -4 and it has a degree of 3. Then add whatever terms after it being sure to not add any more with exponent 3 or higher.

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