5 gallons > 12 teaspoons
or
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Passing is a good goal.
pH = -log H+
7.2 = -log H+
-7.2 = log H+
10^(-7.2) = H+
Answer: H+ = 10^(-7.2), third choice
The best definition of the properties of equality is: A group of rules that help you understand how each side of an equation is related to the other.
<h3>Equation</h3>
By definition, an equation is a mathematical expression with an equality sign separating each side of the expression.
- In which case, each side of the equation is equal to the other.
Read more on equations:
brainly.com/question/12790939
Answer:
-2
Step-by-step explanation:
We assume you want to find the number. Let it be represented by x.
(6+2x)·5 = -3x +4 . . . . . the meaning of the problem statement
30 +10x = -3x +4 . . . . . eliminate parentheses
26 +13x = 0 . . . . . . . . . add 3x-4 to both sides
2 + x = 0 . . . . . . . . . . . . divide by 13
x = -2 . . . . . . . . . . . . . . subtract 2
The number is -2.