Based on the number of candy pieces that Mack ate on the first and net day, the number of pieces of candy that he collected on Halloween night was 78 pieces of candy
How to find the number of candy pieces collected?
The total pieces of candy that Mack had left on the next day was:
Number of candy pieces collected - 7 pieces of candy - (10% x Number of candy pieces collected) = 63
To find the number of candy pieces collected:
x - 7 - 10% × x = 63
x - 7 - 0.1x = 63
x - 0.1x = 63 + 7
0.9x = 70
x = 70 / 0.9
x = 77.7
= 78 pieces of candy
Find out more on candy remaining at https://brainly.com/question/16014529
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