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Nesterboy [21]
3 years ago
12

25 points for grabs!

Mathematics
1 answer:
coldgirl [10]3 years ago
3 0

Answer:

  • 6 marbles

Step-by-step explanation:

Let the initial number of marbles be x

Then added 3 and got 9 as final number

<u>Equation for this and solution</u>

  • x + 3 = 9
  • x = 9 - 3
  • x = 6
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-(3/4)+1 7/8 divided by 1/2 =n
VashaNatasha [74]

first off, let's convert the mixed fraction to improper fraction and then proceed, let's notice that by PEMDAS or order of operations, the multiplication is done first, and then any sums.

\stackrel{mixed}{1\frac{7}{8}}\implies \cfrac{1\cdot 8+7}{8}\implies \stackrel{improper}{\cfrac{15}{8}} \\\\[-0.35em] ~\dotfill\\\\ -\cfrac{3}{4}~~ + ~~\cfrac{15}{8} \div \cfrac{1}{2}\implies -\cfrac{3}{4}~~ + ~~\cfrac{15}{8} \cdot \cfrac{2}{1}\implies -\cfrac{3}{4}~~ + ~~\cfrac{15}{4} \\\\\\ \cfrac{-3+15}{4}\implies \cfrac{12}{4}\implies 3

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2 years ago
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Hitman42 [59]

Answer:

She has 42 pieces of wood each of 1 inch of length.

Step-by-step explanation:

Amy has 42 inches piece of wood.

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Mathematically

Total length / unit lenght = Number of pieces

42 inches/ 1 inch= 42 pieces.

She has 42 pieces of wood each of 1 inch of length.

6 0
3 years ago
when a company produces 5,000 units, variable costs are $35 per unit and total cost in $200,000. What is the total cost when the
Klio2033 [76]
<h2>$320,000 is what the company produces with 8000 units.-------------------------------------------------------</h2><h2>------------------------------------------------------------------------</h2><h2>------------------------------------------------------------------------</h2><h2>------------------------------------------------------------------------</h2><h2>------------------------------------------------------------------------</h2><h2 />
5 0
2 years ago
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Answer:

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Step-by-step explanation:

Negative reciprocals in a kite create a perpendicular bisector. So the two lines share a midpoint so they are perpendicular.

7 0
3 years ago
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Answer:

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Step-by-step explanation:

.............

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3 years ago
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