Answer:
4 people will be expected to win the prize
Step-by-step explanation:
Out of 15 people, 5 won a prize
5/15 = simplify into 1/3
1/3 = x/12 Cross multiply
3x = 12 Divide 3 on both sides
x = 4
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<em>Hope this helps!!!</em></u></h3><h3><u>
<em>:)</em></u></h3>
The answer is B.
remember to use the reciprocal when dividing with fractions
The hydronium ion is H₃O⁺ and its concentration is equivalent to the H⁺ ion concentration. The H⁺ ion concentration is given by:
pH = -log[H⁺]
[H⁺] = 10^(-8.2)
[H⁺] = 6.31 x 10⁻⁹ mole/dm³
The hydronium ion concentration is 6.31 x 10⁻⁹ mole/dm³
Answer: division , addition, addition, multiplication, subtraction, addition, multiplication
Step-by-step explanation: idrk know how to explain other than the fact that you look at the symbols.
