What is the value of the rational expression below when x is equal to 4? (x+20/x+4)
4 + 5 + 4 = 13
unless you mean
(x+20) / (x+4)
which is
24/8 = 3
watch your mathematical grammar.
To find the value of the rational expression (x+20)/(x+4) when x is equal to 4, we substitute x = 4 into the expression.
Substituting x = 4, we have:
(4+20)/(4+4)
Simplifying this expression, we get:
24/8
Which simplifies further to:
3
Therefore, the value of the rational expression (x+20)/(x+4) when x is equal to 4 is 3.
To find the value of the rational expression when x is equal to 4, we substitute 4 for x in the expression and simplify.
1. Evaluate the numerator:
Substitute x = 4 into the numerator, which is (x + 20):
(4 + 20) = 24
2. Evaluate the denominator:
Substitute x = 4 into the denominator, which is (x + 4):
(4 + 4) = 8
3. Simplify the expression:
The rational expression is (x + 20)/(x + 4). When x = 4, the expression becomes:
24/8 = 3
Therefore, the value of the rational expression when x is equal to 4 is 3.