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dkb
25.02.2020 •
Mathematics
You can work at most 20 hours next week. You need to earn at least $92 to cover you weekly expenses.Your dog- walking job pays $7.50 per hour and your job as a car wash attendant pays $6 per hour. Write a system of linear inequalities to model the situation.
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Ответ:
Solution:
Let "x" be the time spent in dog walking job
Let "y" be the time spent in car wash attendant
Given that,
You can work at most 20 hours next week
"at most" means "less than or equal to" 20
Therefore,
Also given that,
Your dog- walking job pays $7.50 per hour
Your job as a car wash attendant pays $6 per hour
You need to earn at least $92 to cover you weekly expenses
"at least" means "greater than or equal to" 92
Thus, a inequality is framed as:
Thus eqn 1 and eqn 2 is the system of linear inequalities to model the situation
Ответ:
7 - 9 + (9 - 5)^2 - 4 (-6/6) + 8 - 3×10
-4