Answer: The number of hex nuts in the bin after that delivery is 1.3x.
Step-by-step explanation:
Let the number of hex nuts in a bin before noon on Tuesday be 'x'.
After a delivery at noon,
the number of hex nuts in the bin increased by 30%.
So, According to question, we get that
[tex]\dfrac{100+30}{100}\times x\\\\=\dfrac{130}{100}\times x\\\\=1.3x[/tex]
Hence, the number of hex nuts in the bin after that delivery is 1.3x.