All categories

2 years ago

11.3x = 15 - 2x Help me

Mathematics

2 answers:

schepotkina [342]2 years ago

7 0

Answer: see below

Step-by-step explanation:

11.3x=15-2x

We move all terms to the left:

11.3x-(15-2x)=0

We add all the numbers together, and all the variables

11.3x-(-2x+15)=0

We get rid of parentheses

11.3x+2x-15=0

We add all the numbers together, and all the variables

13.3x-15=0

We move all terms containing x to the left, all other terms to the right

13.3x=15

x=15/13.3

x=1+1/7.8235294117647

g100num [7]2 years ago

3 0

Answer:

x= 15/13.3 = 1.1278

Step-by-step explanation:

11.3x = 15 - 2x

if we bring all the x to one side and the to the other side, we'll get :

11.3x+2x =15 ⇒13,3x = 15

To find x we divide 15 by 13.3

x = 15/13.3 = 1.1278

To control this we put 1.1278 in the formula 11.3x = 15-2x

11.3 * 1.1278 = 15 -2 * 1.1278

12.744 = 15 - 2.256

12.744 + 2.256 = 15 So it's correct

You might be interested in

Find an equation that models the path of a satellite if its path is a hyperbola, a = 55,000 km, and c= 81,000 km. Assume the cen

elena-14-01-66 [18.8K]

Answer:

$\frac{x^2}{55000^2} - \frac{y^2}{59464^2} =1$

Step-by-step explanation:

the transverse axis is horizontal.

so its a horizontal hyperbola

Center is the origin so center is (0,0)

Equation of horizontal hyperbola is

$\frac{x^2}{a^2} - \frac{y^2}{b^2} =1$

Given a= 55000 and c= 81000

c^2 = a^2 + b^2

81000^2 = 55000^2 + b^2

subtract 55000^2 on both sides

b = sqrt(81000^2 - 55000^2)= 59464.27

now plug in the values

$\frac{x^2}{55000^2} - \frac{y^2}{59464^2} =1$

7 0

2 years ago

Identify the solution set of 3 In 4 = 2 In x. -{6} -{-8,8} -(8)

o-na [289]

Option C: The solution set is $\{8\}$

Explanation:

The expression is $3 \ln 4=2 \ln x$

Now, let us find the solution set.

Switch sides, we get,

$2 \ln x=3 \ln 4$

Dividing by 2 on both sides, we have,

$\ln x=\frac{3 \ln 4}{2}$

Thus, $\ln 4=\ln 2^2=2\ln 2$

Hence, the above expression becomes,

$\ln x=\frac{3 \cdot 2 \ln (2)}{2}$

Simplifying, we get,

$\ln x=3 \ln 2$

Applying the log rule, we get,

$$\ln x$=\ln \left(2^{3}\right)$

Simplifying, we have,

$$\ln x$=\ln \left8\right$

Applying the log rule, we have,

$x=8$

Thus, the solution set is $\{8\}$

Hence, Option C is the correct answer.

5 0

3 years ago

Natalia is moving into a new house. All together, her furniture weighs 2,896 pounds. If it takes 2 trucks to carry all of Natali

mixas84 [53]

Answer:

1448 Pounds per truck

Step-by-step explanation:

Divide 2896 by 2

If you haven't learned long division yet, try breaking up the number and dividing it by 2 like this:

2000/2=1000

800/2=400

90/2=45

6/2=3

Then, add them up and solve from there: 1000+400+45+3=1400+48=1448

7 0

2 years ago

Read 2 more answers

The function q(w)=3+5(w−1) represents the number of quarters in a bowl on week w.

mamaluj [8]

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.
The value 5 represent in this situation is letter B which is "
The value of the quarters in the bowl on Week 1 was $5."

4 0

3 years ago

Read 2 more answers

For what values of does the equation (2 + 1)^2 + 2 = 10 − 6 have two real and equal roots?

Tatiana [17]

Answer:

(2 + 1)^2 + 2 = 10 - 6

Falso

Step-by-step explanation:

109 / 5000

El lado izquierdo

no es igual al lado derecho

, lo que significa que la declaración dada es falsa.

Falso

3 0

2 years ago