I think that it is CD overbar equals XY overbar i think but i really don't know.
Answer:
i think its 8r^4
hope this helps
Step-by-step explanation:
Let the second score = x
⇒ second score = x
<span>the first is 14 points more than the second
</span>⇒ first score = x + 14
<span>the sum of the first two is 6 more than twice the third
</span>⇒ third score = 1/2 (x + x + 14 - 6) = x + 4
<span>The sum of a student's three score is 246
</span>⇒ x + (x + 14) + (x + 4) = 246
<span>
Solve x:
</span>x + x + 14 + x + 4 = 246
3x + 18 = 246
3x = 228
x = 76
second score = x = 76
first score = x + 14 = 76 + 14 = 90
Answer: 90
You want to isolate the variable using the division property of inequality:
3x / 3 < -6 / 3 = x < -2. The sign of the inequality stays the same since you did not change the order of the inequality nor did you divide by a negative number on both sides. Hopefully this helps!
