nolof
07.10.2019 •
Mathematics
If the average (arithmetic mean) of 3a and 4b is less than 50, and a is twice b, which is the largest integer value for a?
9
10
11
19
20
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Ответ:
3a + 4 (.5 a) < 100
3a + 2a < 100
5a < 100
a < 20
So i think the answer is 19
Hope this helps
Ответ:
x = 2.31662
x = −4.31662
Step-by-step explanation: