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vagabundo [1.1K]
3 years ago
9

Mary lost 30 pounds. Before her diet she weighed 180 pounds. What is the percent of change.

Mathematics
1 answer:
Lelu [443]3 years ago
5 0

Answer:

percentage change= 500%

Step-by-step explanation:

After diet the weight reduced = 30 pounds

Before diet her weight = 180 pounds

percentage change = { (180 - 30) ÷ 30 } × 100

                             =  ( 150 ÷ 30) × 100

                              = 5 × 100

                               = 500 %

∴percentage change= 500%

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{ x + 4y = 22     ( + x - x = 0 )
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