Answer:
He received 7 orange beads.
Step-by-step explanation:
Given,
Total number of beads Dean received = 70,
Also, 10% of them were orange,
Thus, the number of orange beads = 10% of total beads
= 10% of 70
[tex]=\frac{10\times 70}{100}[/tex]
[tex]=\frac{700}{100}[/tex]
[tex]=7[/tex]
Hence, he received 7 orange beads.