lillymt1023
04.08.2019 •
Mathematics
On our first quiz juan scored 82. use a compound inequality to show the possible score x he got on his second test, if the average is strictly between 74 and 80
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Ответ:
minimum:
74 = (82 + x) / 2
The value of x from the equation is equal to 66.
maximum:
80 = (82 + x )/2
The value of x from the equation is equal to 78.
Hence, Juan's score should fall between 66 and 78, inclusive.
66 ≤ x ≤ 78
Ответ:
Step-by-step explanation:
Juan scored in first quiz = 82
Let x be the marks he scored in second test .
We are given that the average is strictly between 74 and 80
Average =
So, minimum:
So, maximum:
So, Juan score on second test is
Where 66 and 78 are inclusive.
Hence Juan's score should fall between 66 and 78, inclusive.
Ответ:
-2/3
Step-by-step explanation:
put 1 in x should be 0
k is -2/3