sarrivera579
20.02.2020 •
Mathematics
4. A number is increased by 50% and the resulting number is then decreased by 40%. The final number is
what percent of the original number?
A. 90%
B. 95%
C. 100%
D. 105%
E.120%
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Ответ:
A. 90%
Step-by-step explanation:
When the number is increased by 50%, it is multiplied by (1 +50%) = 1.50.
When a number is decreased by 40%, it is multiplied by (1 -40%) = 0.60.
When both factors are applied to a number, the resulting value is ...
1.50×0.60 = 0.90 = 90%
of the original value.
Ответ:
lol, I feel that they just deleted a bunch of my questions. :')
Step-by-step explanation: