Solve the inequality 3x>12 please help me !

Mathematics

2 answers:

adell [148]2 years ago

8 0

Answer:

A) x>4

Step-by-step explanation:

3x>12

Divide both sides by 3

x>4

anzhelika [568]2 years ago

6 0

Step-by-step explanation: When you are asked to solve an inequality like the one in this problem, your goal is the same as it is when solving equations which is to get x by itself on one side.

In this problem, since x is being multiplied by 3 on the left side of the inequality, to get x by itself, we divide both sides by 3.

On the left side, the 3's cancel and we're left with x. On the right side, 12 divided by 3 is 4 so we have X > 4.

This means that A would be or answer.

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I am Lyosha [343]

Answer:

The model for the temperature of the drink can be written as

$T=72-20e^{-0.08t}$

Step-by-step explanation:

For a cold drink in a hotter room, we can say that the rate of change of temperature of the drink is proportional to the difference of temperature between the drink and the room.

We can model that in this way

$\frac{dT}{dt}=k*(T_r-T)$