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Mama L [17]
3 years ago
9

Can a rational number be subtracted by a irrational number an equal a rational number?

Mathematics
1 answer:
vladimir2022 [97]3 years ago
4 0

Answer:

No

Step-by-step explanation:

The sum of a rational number and an irrational number is irrational.

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Colin was thinking of a number. Colin subtracts 5 from it and gets an answer of 10.7. What was the original number?
Gemiola [76]

Answer:

15.7

Step-by-step explanation:

10.7 + 5 = 15.7

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What is the value of the 2 in 5,678.321
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Can someone answer B for me please and thank you sm
morpeh [17]

Answer:

a = 1/8

b = 8

Step-by-step explanation:

a (1/2) ^3 = (1/2) *(1/2) * (1/2) = 1/8

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2 years ago
You and your friend are making 30 liters of sodium water. You have liters of 10% sodium and your friend has liters of 22% sodium
iren [92.7K]
X liters of 10% + (30 - x) liters of 22% = 30 liters of 15% 

<span>Plugging in the numbers </span>
<span>x(10) + (30 - x)22 = 30(15) </span>

<span>Distribute </span>
<span>10x + 660 - 22x = 450 </span>

<span>Combine like terms </span>
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<span>Divide both sides by -12 </span>
<span>x = 17.5 </span>
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<span>17.5 liters of 10% + 12.5 liters of 22% = 30 liters of 15%

THE TRICK IS TO JUST USE ONLY ONE VARIABLE</span>
4 0
3 years ago
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