Answer:
A.
1. percent of increase = new price - original price / original price
percent of increase = Php 55 - Php 50 / Php 50 × 100%
percent of increase = Php 5 / Php 50 × 100÷%
percent of increase = 0.1 × 100%
percent of increase = 10%
2. percent of increase = Php 100 - Php 70 /
Php 70 × 100%
percent of increase = Php 30 / Php 70 × 100%
percent of increase = 0.4286 × 100%
percent of increase = 42.86%
3. percent of increase = Php 500 - Php 300 / Php 300 ×100%
percent of increase = Php 200 / Php 300 x 100%
percent of increase = 0.6667 × 100%
percent of increase = 66.67%
B.
1. percent of decrease = original price - new price /
original price × 100%
percent of decrease = Php 30 - Php 26 / Php 30 × 100%
percent of decrease = Php 4 / Php 30 × 100%
percent of decrease = 0.1333 × 100%
percent of decrease = 13.33%
2.
percent of decrease = Php 130 - Php 115 / Php 130 × 100%
percent of decrease = Php 15 / Php 130 × 100 %
percent of decrease = 0.1154 × 100%
percent of decrease = 11.54%
3.
percent of decrease = Php 500 - Php 450 / Php 500 × 100%
percent of decrease = Php 50 / Php 500 × 100%
percent of decrease = 0.1 × 100%
percent of decrease = 10%
A: 1) 10% 2) 42.86% 3) 66.67%
B: 1) 13.33% 2) 11.54% 3) 10%
step by step explanation:
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Answers & Comments
Answer:
A.
1. percent of increase = new price - original price / original price
percent of increase = Php 55 - Php 50 / Php 50 × 100%
percent of increase = Php 5 / Php 50 × 100÷%
percent of increase = 0.1 × 100%
percent of increase = 10%
2. percent of increase = Php 100 - Php 70 /
Php 70 × 100%
percent of increase = Php 30 / Php 70 × 100%
percent of increase = 0.4286 × 100%
percent of increase = 42.86%
3. percent of increase = Php 500 - Php 300 / Php 300 ×100%
percent of increase = Php 200 / Php 300 x 100%
percent of increase = 0.6667 × 100%
percent of increase = 66.67%
B.
1. percent of decrease = original price - new price /
original price × 100%
percent of decrease = Php 30 - Php 26 / Php 30 × 100%
percent of decrease = Php 4 / Php 30 × 100%
percent of decrease = 0.1333 × 100%
percent of decrease = 13.33%
2.
percent of decrease = Php 130 - Php 115 / Php 130 × 100%
percent of decrease = Php 15 / Php 130 × 100 %
percent of decrease = 0.1154 × 100%
percent of decrease = 11.54%
3.
percent of decrease = Php 500 - Php 450 / Php 500 × 100%
percent of decrease = Php 50 / Php 500 × 100%
percent of decrease = 0.1 × 100%
percent of decrease = 10%
A: 1) 10% 2) 42.86% 3) 66.67%
B: 1) 13.33% 2) 11.54% 3) 10%
step by step explanation:
A.
B.