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Olin [163]
3 years ago
12

The chemical acidity of a solution is measured in units of pH: pH=-log[H+], where [H+] is the hydrogen ion concentration in the

solution. What is [H+] if the pH=8.8?
Mathematics
1 answer:
alina1380 [7]3 years ago
3 0

Answer:

3.5

Step-by-step explanation:

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the larger of two number is nine more than four times the smaller number. the sum of the two numbers is fifty-nine. find the two
VLD [36.1K]
This is solved by setting up two equations and then using one to answer the other.
The first step (use what is given to set up the two separate equations)
We are looking for two numbers, let us call them X and Y. 
We are told that X + Y = 59
 We are also told that (9 more than) 9+ (4times the smaller number) 4Y is the bigger number X
Then we combine that into 9+4Y=X
so we now have two separate equations and we can use one to solve the other. Everywhere we have X in the first equation, we will fill in with the second equation
(9+4Y) +Y = 59    [then combine like terms]
9+5Y=59            [subtract 9 from both sides]
5Y=50                   [divide both sides by 5 to isolate the Y]
Y=10                      [now plug this into either equation to solve for X]
9+4(10)=X
9+40=X
<u><em>49=X and 10=Y</em></u>
4 0
3 years ago
mr. porter owns a house when he first bought the house it was valued at d dollars since then all of the home values in his neigh
Alex17521 [72]
D + 20% of d = Current Value
5 0
3 years ago
Plz help ASAP thanks
m_a_m_a [10]

Answer:

No because the line does not pass through the origin

Step-by-step explanation:

to be proportional it has to go through the origin

7 0
4 years ago
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Marisella was late to class 4 times in April. Each time she was late she missed 3
Ivenika [448]

Answer:

it's not in the chioces

Step-by-step explanation:

1time =3 mins

4 times =4×3

12mins

7 0
3 years ago
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An adult sleeps about 480 per day. In infant sleeps about 820 minutes per day. About how many more minutes does an infant sleep
AysviL [449]
(820*7)-(480*7)=? This is how to solve the equation

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