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Idkdumb
11.07.2019 •
Mathematics
How do know when to add or subtract integers
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Ответ:
It really depends on the sign in front of the numbers for that given example though -68-1 +(-6) you would have to add the -68 and -1 since they are both negative and then you would have to add it again to the -6 since they also have the same sign. Therefore the answer would be -75
Ответ:
answer:
x ≥ 5
y ≥ 10
3x + 2.3y ≥ 60
Step-by-step explanation:
Lets the number of men's shoes he sells be x and women's shoes be y.
For each men's shoes , he gets a commission of $3 and for each women's shoe, he gets a commission of $2.30 .
He needs to sell atleast 10 women's shoes and 5 men's shoes.
Also he needs to make atleast $60 per week.
x ≥ 5
y ≥ 10
3x + 2.3y ≥ 60
These are are the 3 required inequalities.
Now we will see an example.
If he sells 20 womens shoes and 10 mens shoes , he will meet the requirements.
He will make a total profit = 2.3\times 20 + 3\times 10 =$76
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