Write the sentence as an inequality.
5 is no greater than 4 times a number minus 2.5.
1 answer:
Answer:
<em>5 ≤ 4x - 2.5</em>
Step-by-step explanation:
<u>Inequalities</u>
The expression "no greater than" can be better expressed as "less or equal than".
The expression 4 times a number, being x the unknown number can be written: 4x
Thus, the equivalent inequality of the sentence is:
5 ≤ 4x - 2.5
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Answer:
3x^2 -(6-5)x-10=0
3x^2 -6x+5x-10=0
3x(x-2)+5(x-2)=0
(x-2) (3x+5) = 0
either,
x -2 =0
x=2
then,
3x +5=0
x= -5/3