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Ainat [17]
4 years ago
11

If one gallon of paint covers 825 sq.ft, how much paint is needed to cover 2640sq.ft. ?

Mathematics
1 answer:
alina1380 [7]4 years ago
3 0
2640/825=3.2
There is need 4 gallons to cover 2640 sq ft.
80% of the fourth gallon can be used for other purposes after painting.
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<img src="https://tex.z-dn.net/?f=-2%283%20-%202x%29%20%3D%20-6x%20%2B%208%28x%20%2B%202%29" id="TexFormula1" title="-2(3 - 2x)
vovikov84 [41]

Answer:

\boxed{ \bold{ \huge{ \boxed{ \sf{x = 11}}}}}

Step-by-step explanation:

\sf{ - 2(3 - 2x) =  - 6x + 8(x + 2)}

Distribute -2 through the parentheses

Similarly, Distribute 8 through the parentheses

\dashrightarrow{ \sf{ - 6 + 4x =  - 6x + 8x + 16}}

Collect like terms

\dashrightarrow{ \sf{ - 6 + 4x = 2x + 16}}

Move 2x to left hand side and change it's sign

Similarly, move 6 to right hand side and change it's sign

\dashrightarrow{ \sf{4x - 2x = 16 + 6}}

Collect like terms

\dashrightarrow{ \sf{2x = 16 + 6}}

Add the numbers : 16 and 6

\dashrightarrow{ \sf{2x = 22}}

Divide both sides by 2

\dashrightarrow{ \sf{ \frac{2x}{2}  =  \frac{22}{2} }}

Calculate

\dashrightarrow{ \sf{x = 11}}

Hope I helped!

Best regards! :D

5 0
3 years ago
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daser333 [38]

Answer:

  • x = a^(q/p)

Step-by-step explanation:

<u>See steps below, solving for x:</u>

  • x^(p/q) = a  
  • log x^(p/q) = log a
  • p/q log x = log a
  • log x = q/p log a
  • log x = log a^(q/p)
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4 0
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2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,73,79,83,89,97
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Gnesinka [82]
Angle pml =39
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Answer:D) A positive correlation between the height of a woman and the height of her brother

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Step-by-step explanation:

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