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1 answer:
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Step-by-step explanation:
Combine like terms on left hand side. Like terms are those which have the same base. Only coefficients of like terms can be added or subtracted.
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Transpose 2x to left hand side and change it's sign.
Similarly , Transpose 10 to right hand side and change it's sign.
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Divide both sides by 6
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Answer:
5 ≤ x ≤ 50; Billy needs to make at least 5 more pizzas but no more than 50
Step-by-step explanation:
Let
x -----> the number of pizzas
we have the compound inequality
Divide the compound inequality into two inequalities
----> inequality A
The solution of the inequality A is the interval -----> (-∞,50]
-----> inequality B
Rewrite
The solution of the inequality B is the interval -----> [5,∞)
therefore
The solution of the compound inequality is
(-∞,50] ∩ [5,∞)=[5,50]
so
Billy needs to make at least 5 more pizzas but no more than 50