Answer:
-12.
Step-by-step explanation:
a^2 - 5a - 6
When a = 2 we have
2^2 - 5(2) - 6
= 4 - 10 - 6
= -12.
There will be 450 students that will buy lunch today.
Fraction of students that'll buy lunch = 5/8.
Number of students in the school = 720
Number of students that'll buy lunch will now be = 5/8 × 720 = 450
Therefore, 450 students will buy lunch today.
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brainly.com/question/24750189
Answer:
x ≤ 2
Step-by-step explanation:
Most of the properties of equality also apply to inequalities. The exception is multiplication (or division) by a negative number. An equation can be multiplied or divided by any number you like (except division by 0) and it will remain true. <em>An inequality must have the relation symbol reversed when multiplying or dividing by a negative number</em>.
Here, we don't run into that issue, because we can solve this by dividing both sides by the coefficient of x, which is +3.
(3x)/3 ≤ 6/3
x ≤ 2 . . . . . . . simplify