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laiz [17]
3 years ago
9

A ball is draw at random form a box containing 6 red balls, 4 white balls and 5 blue balls. what is the probability that the bal

l drawn is (1)red (2)white (3)blue (4)red or blue
Mathematics
1 answer:
makkiz [27]3 years ago
3 0
1 = 6 out of 15
2 = 4 out of 15
3 = 5 out of 15
4 = 11 out of 15

hope this helps you
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Theres 30 kilograms of 10% apple juice. How many kilograms of apples does it need to increase the current apple juice to 25%​?
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The mass of the apple juice needed to increase the initial concentration to 25% is 45 kg

The given parameters;

  • <em>Mass of the apple juice, m = 30 kg</em>
  • <em>current percentage, = 10%</em>
  • <em>final percent after increment = 25%</em>

Let the mass added to increase the percentage to 30% = x

10% ----------------- 30 kg

25% ------------------ ?

= \frac{25 \times 30}{10} \\\\= 75 \ kg

The additional mass is calculated as;

x+ 30 = 75\\\\x = 75 - 30\\\\x = 45 \ kg

Thus, the mass of the apple juice needed to increase the initial concentration to 25% is 45 kg.

Learn more about percentage and ratio here: brainly.com/question/11752721

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