All categories

3 years ago

Como se resuelve esta ecuacion 3×+12=6

Mathematics

2 answers:

PSYCHO15rus [73]3 years ago

8 0

Answer:

deberia ser

3x+12=6

x=-2

gregori [183]3 years ago

4 0

Answer:

-2

Step-by-step explanation:

3x+12=6

-12 -12 subtract 12 on both sides to get x by itself

3x=-6 solve

3x/3 = -6/3 divide both sides by 3

x= -2

You might be interested in

Suppose a jar contains 13 red marbles and 11 blue marbles. If you reach in the jar and pull out 2 marbles at random at the same

Alisiya [41]

I’d say around 75% or less

This is just an assumption considering that there are more red than blue but only trumps blue by 2. Taking out those two, you’d be left with a 50% chance of getting red and/or blue marbles

3 0

3 years ago

F(x)=6x^2 +10x−1

KATRIN_1 [288]

Answer: It has two distinct real zeros.

Step-by-step explanation:

The formula that is used to calculate the discriminant of a Quadratic function is the one shown below:

$D=b^2-4ac$

In this case you have the following Quadractic function provided in the exercise:

$f(x)=6x^2 +10x-1$

Let's make it equal to 0:

$0=6x^2 +10x-1$

You can identify that:

$a=6\\\\b=10$

Knowing these values, you can substitute them into the formula and then evaluate:

$D=10^2-4(6)(-1)\\\\D=124$

Therefore, since:

$D>0$

You can determine that the it has two distinct real roots.

3 0

4 years ago

malia is at an amusement park she bought 14 tickets and each ride requires 2 tickets write an expression that gives a number of

seraphim [82]

Ok, so she has 14 tickets and each ride cost 2 so that can be modeled with the following expression: x= 14-2y since she initially bought 14 tickets and 2 times the number of tickets she spends. To find the equivalent expression you could basically switch up the formula like so: 7*2-2y=x because you just need an equivalent expression, and you don't need to have such a different formula or anything like that. Hope I helped!

7 0

3 years ago

A variable needs to be eliminated to solve the system of equations below. Choose the

sasho [114]

Step-by-step explanation:

-4x - 2y = 18

+ (4x - 4y = -36)

=> -6y = -18, y = 3

As we added the equations together, we have eliminated x and found y.

Hence the correct answer is "Add to eliminate x".

4 0

2 years ago