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siniylev [52]
3 years ago
13

Kenneth's Tea Shop has caffeinated tea and decaffeinated tea. The tea shop served 63 caffeinated

Mathematics
1 answer:
UNO [17]3 years ago
4 0

Answer:

90%

90% of the teas were caffeinated.

Step-by-step explanation:

Total teas: 63+7= 70

63/70 x 100/1= 90%

90% of the teas were caffeinated.

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9514 1404 393

Answer:

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Step-by-step explanation:

  6 + x/5 = x/5 - 5 - 3x/10 . . . . . . . given

  60 +2x = 2x -50 -3x . . . . . . . . . multiply by 10

  3x = -110 . . . . . . . . . . . . . . . .  add x-60 to both sides

  x = -110/3 = -36 2/3 . . . . . .divide by the coefficient of x

There is one solution to the equation.

_____

<em>Additional comment</em>

The coefficient of x on the left side of the equation is not equal to the coefficient of x on the right side. When that is the case, the equation will have one solution.

When the coefficients are equal, there will be no solutions if the constants are different, and there will be infinite solutions if the constants are the same.

6 0
3 years ago
Insturctions to care for a plant say to water it with 3/4 cup of water every day.The plant has been getting 25% too much water.
disa [49]

For this case we propose a rule of three. We assume that the excess water received was in one day. So:

\frac {3} {4} cup ------> 100%

x ----------------------------> 25%

Where "x" represents excess water.

x = \frac {25 * \frac {3} {4}} {100}\\x = \frac {\frac {75} {4}} {100}\\x = \frac {75} {400}\\x = \frac {15} {80}\\x = \frac {3} {16}

Thus, the excess water is \frac {3} {16}cups.

Then, in one day you receive in total:

\frac {3} {4} + \frac {3} {16} = \frac {16 * 3 + 4 * 3} {16 * 4} = \frac {48 + 12} {64} = \frac {60 } {64} = \frac {15} {4}cups of water.

Answer:

\frac {15} {4} cups of water

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Step-by-step explanation:

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Answer:

( 5/2,5/2)

Step-by-step explanation:

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Answer:

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