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zloy xaker [14]
2 years ago
13

HELPPP i need answers asappppp

Mathematics
1 answer:
sweet-ann [11.9K]2 years ago
6 0

Answer:

The expressions are equivalent

Step-by-step explanation:

We can start by simplifying the first expression:

1.25x+4+0.75x-3

Move like terms so that they are together:

1.25x+0.75x+4-3

Now, combine like terms:

2x+1

The expressions are equivalent

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2 years ago
a wildlife photographer photographs a crocodile and then paddles against a river current for 6 km. Then, hoping to photograph a
rusak2 [61]

Answer:

  • 5 km/h or 6 km/h

Step-by-step explanation:

  • Let the speed of the boat be x
  • Speed against the current in the river is x - 2

<u>Time in the river:</u>

  • 6/(x - 2)

<u>Time in the lake:</u>

  • 15/x

<u>The difference:</u>

  • 6/(x - 2) = 15/x - 1

Solve for x to find the speed of the boat

<u>Multiply both sides by x(x - 2) to clear the fraction:</u>

  • 6x = 15(x - 2) - x(x - 2)
  • 6x = 15x - 30 - x² + 2x
  • x² - 11x + 30 = 0
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4 0
3 years ago
Read 2 more answers
7 x 1/5 as a mixed number
iVinArrow [24]

Answer:

It's 15/7

Step-by-step explanation:

7 0
2 years ago
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the sum of 43.9 and a number is 49.65, as shown below l. what number should go in the box to complete the addition problem
torisob [31]
5.75 is the answer.
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7 0
3 years ago
Solve for the variable. 3/4x = -24​
sleet_krkn [62]

Hello!

Answer:

\huge\boxed{x = -32}

3/4x = -24

To isolate the "x" variable, divide both sides by 3/4 (multiply by its reciprocal, or 4/3)

3/4x · 4/3 = -24 · 4/3

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x = -32.

8 0
3 years ago
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