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algol13
3 years ago
11

A band sells T-shirts at their concerts. After one concert, they sold 320 out of 400 black T-shirts and 270 out of 300 blue T-sh

irts. A greater percentage of which color T-shirts were sold?
Mathematics
1 answer:
Paha777 [63]3 years ago
7 0
Percentage of black T-shirt sold = 320/400 x 100 = 80%

Percentage of blue T-shirt sold = 270/300 x 100 = 90%

Answer: There is a greater percentage of Blue T-Shirt sold.
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Then the system of inequalities is:

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Here we also should add the inequalities:

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The graph can be seen in the image below: (the dark blue is the solution region for the first inequality, the light blue one is the solution region for the second inequality)

 

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