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Cerrena [4.2K]
2 years ago
9

An artist needs to order supplies to prepare for the upcoming art

Mathematics
1 answer:
Irina18 [472]2 years ago
3 0

Answer:

paintings-8×3+4×18+4×2=24+72+8=104$

drawings-6×8+2×4+25×2=48+8+50=106$

figurines-4×4+1×4+12×6=16+4+72=92$

full coast=paintings+drawings+figurines=104$+106$+92$=302$

Answear:She beeds 302$ to buy everything for her drawings painings and figurines.

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There are 1 1/2 hip hop classes for 1 ballet class.
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tank contains 20002000 liters​ (L) of a solution consisting of 112112 kg of salt dissolved in water. Pure water is pumped into t
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Answer:

Answer:

t ≅ 5.09 min

Step-by-step explanation:

we have that if in 4000 L/sol there is 132 kg salt and the pumping speed is 12L/s, we must find how much of salt is pumping per second and then find the amount of salt remaining

12L/s*132kg salt/4000L = 0.396 Kg salt/s,  this means that 0.396 kg per second comes out , It should be found that the amount of salt must be drained so that only 11 kg of salt remain

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121Kg salt*s/0.396Kg salt ≅ 305.55 s ⇒ 305.55s*min/60s ≅ 5.09 min

Step-by-step explanation:

6 0
3 years ago
What is the greatest decimal in hundredths that can be rounded to 14.5? What is the least​
olga55 [171]

Answer:

  • 14.45 and 14.54

Step-by-step explanation:

<u>Rule for rounding:</u>

  • Round up if number is between 5 and 9
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and

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<u>From above we see that:</u>

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Step-by-step explanation:

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Gina looks at the architectural plan of a four-walled room in which the walls meet each other at right angles. The length of one
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If the shape of the room is a square, then the square root of the sum of the squares of the the two adjacent sides will give the diagonal.

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\sqrt{17^2+17^2} = \sqrt{2(17^2)}  \\  \\ = \sqrt{2(289)} = \sqrt{578} =24.04

Since the square root of the sum of the squares of the the two adjacent sides is 24.04 and not 18.79, therefore, the shape of the room is not a square.
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