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Sergeeva-Olga [200]
3 years ago
6

Fifty metal spheres with the radius of 4 m are melted and the solution is pourded into a box with a base dimension of 2 m × 6 m.

Find the height of the cube filled with solution .
Mathematics
1 answer:
rodikova [14]3 years ago
4 0
Are you sure your in elementary school???????????
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Answer:

i would say that i would take 5 days

Step-by-step explanation:

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2 years ago
What single decimal multiplier would you use to increase by 15% followed by a 14% increase?
umka2103 [35]

9514 1404 393

Answer:

  1.311

Step-by-step explanation:

That multiplier is the product of the multipliers for each of the increases:

  (1 +15%)(1 +14%) = 1.15×1.14 = 1.311

5 0
2 years ago
An ounce of milk contains 20 milligrams of calcium and 60 micrograms of vitamin A.
vova2212 [387]

Answer:

10 ounces of milk and 50 ounces of orange juice

Step-by-step explanation:

Let the amount of milk be x ounces and the amount of orange juice be y ounces.

1. An ounce of milk contains 20 milligrams of calcium and 60 micrograms of vitamin A. Then x ounces of milk contain 20x milligrams of calcium and 60x micrograms of vitamin A.

2. An ounce of orange juice contains 40 milligrams of calcium and 10 micrograms of vitamin A. Then y ounces of orange juice contain 40y milligrams of calcium and 10y micrograms of vitamin A.

<u>Calcium:</u>

20x milligrams in milk

40y milligrams in orange juice

2,200 milligrams in total

Hence,

20x+40y=2,200

<u>Vitamin A:</u>

60x micrograms in milk

10y micrograms in orange juice

1,100 micrograms in total

Hence,

60x+10y=1,100

Solve the system of two equations:

\left\{\begin{array}{l}20x+40y=2,200\\ \\60x+10y=1,100\end{array}\right.

Divide each equation by 10:

\left\{\begin{array}{l}2x+4y=220\\ \\6x+y=110\end{array}\right.

From the second equation:

y=110-6x

Substitute it into the first equation:

2x+4(110-6x)=220\\ \\2x+440-24x=220\\ \\2x-24x=220-440\\ \\-22x=-220\\ \\22x=220\\ \\x=10\\ \\y=110-6\cdot 10=110-60=50

6 0
3 years ago
8x-3x=5x^2 show work
eimsori [14]

8x-3x=5x^2\\5x=5x^2\\x=x^2\\x=1

6 0
3 years ago
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A=2x+y²/7 make y the subject of the formula
ValentinkaMS [17]

Answer:

y=√(7A-2x)

Step-by-step explanation:

A=2x+y²/7

Multiplying both sides by 7

7A=2x+y²

7A-2x=y²

Taking square root on both sides

y=√(7A-2x)

4 0
3 years ago
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