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patworsley
30.08.2020 •
Mathematics
What is absolute value?
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Ответ:
The "Absolute" value of a term is the magnitude of the term regardless of whether the term is positive or negative. It can be thought of as the distance between two numbers (and distances cannot be negative)
In practice, the absolute value of a positive number is still the same positive number
e.g. | 2 | = 2
However, the absolute value of a negative number turns it into a positive number
e.g | -2 | = 2
Ответ:
5 Adult tickets were purchased and 3 student tickets were purchased.
Step-by-step explanation:
Write the problem as an equation like this
11x+7x=76
Now make an equation for the number of purchased tickets. Let x be adult and y be students.
x+y=8
Rewrite x + y = 8 as y = -x +8
Substitute y = -x + 8 into the first equation for y.
11x+7(-x+8)=76
11x+(-7x)+56=76
solve for 11x+(-7x)
4x+56+76
subtract 56 from both sides
4x=20
Divide both sides by 4
X=5
x + y = 8
5 + y = 8
y = 3
5 Adult tickets were purchased and 3 student tickets were purchased.