retros133
30.10.2020 •
Mathematics
13. 30 to 90
A. 3%; increase
B. 67% increase
C. 200%: increase
D. 300%; increase
67% increase
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Ответ:
C
Step-by-step explanation:
The formula for percent increase is [ new-old/old * 100% ]
90-30/30 * 100%
60/30 * 100%
2 * 100%
200%
Best of Luck!
Ответ:
15x + 18y = 3(5x + 6y)