All categories

2 years ago

-3x + 18 = 7x solve

2 answers:

8 0

Answer: x = 1.8

-3x + 18 = 7x
First, isolate the variable. There’s a couple ways to do this. One is to subtract 7x from each side and subtract 18 from each side. The other is to add 3x to both sides. Either way, you end up with all the variables on one side and the rest on its own.

This would give us either…
-10x = -18
OR
18 = 10x

From there, divide by 10 to get a single x

-x = (-18/10)
-x = -1.8
Multiply each by -1 to find what positive x equals
x = 1.8
OR
(18/10) = x
1.8 = x

Harman [31]2 years ago

3 0

Answer:

refer to the attachment

Step-by-step explanation:

hope that helps

You might be interested in

Evaluate the double intergal between the two cirlces

svp [43]

3down votefavoriteFind the area between the circles x2+y2=4x2+y2=4 and x2+y2=6xx2+y2=6x using polar coordinates.I have found that the equation of the first circle, call it C1C1, is r=2r=2 on the other hand, for C2C2, I get that its equation is r=6cosθr=6cosθ. Then, to find the bounds of integration, I have found that their angle of intersection should be θ=arccos(1/3)θ=arccos⁡(1/3) and θ=−arccos(1/3)θ=−arccos⁡(1/3). Then, to set up the double integral:A=∫arccos(1/3)−arccos(1/3)∫26cosθrdrdθA=∫−arccos⁡(1/3)arccos⁡(1/3)∫6cos⁡θ2rdrdθHowever, when evaluating this integral with the calculator, I get a negative value. What would be the problem in this case? Thanks in advance for your help.

5 0

3 years ago

A board game is played as follows: a number cube numbered 1 to 6 is rolled. If the number 1 comes up, you get nothing. If the nu

Evgesh-ka [11]

I think it is fair becasue you have the chance to win more than to lose point if get 1 or 6 you dont get nothing so that not a lose

4 0

3 years ago

Find the slope of the parametric curve xequalsnegative 4 t cubed plus 8, yequals5 t squared, for negative infinity less than t

Licemer1 [7]

Take a picture so I can do the problem

6 0

3 years ago

Find the value of Y! please help

Maurinko [17]

Answer:

y = 5.6

Step-by-step explanation:

Use Sine

Sine = $\frac{opposite}{hypothenuse}$

Sine 45 = $\frac{y}{18}$

Sine of 18 is 0.309

0.309 = $\frac{y}{18}$

Multiply 18 on both sides

0.309 x 18 = $\frac{y}{18}$ x 18

5.562 = y

Round to the nearest tenth:

5.562 = 5.6

3 0

2 years ago

If f is a continuous function such that the integral from 1 to 4 of f of x, dx equals 10, evaluate the integral from 2 to 8 of 2

IgorLugansk [536]

Answer: 10

Step-by-step explanation:

Since integral from 1 to 4 of f(x) =10

To evaluate integral from 2 to 8 of 2 times f(2x), using substitution method

Let U = 2x, dU = 2dx, dx = dU/2

Evaluate the limit, upper limit gives dU = 2*4 = 8, lower limit gives dU = 2*1 = 2.

Since this limit are the same as the limit for the question,

Therefore, F(4) - F(1) = F(8) - F(2) = 10

Substituting dx=dU/2

Gives,

Integral from 2 to 8 of 2 times f(2x)= (1/2)(2)(F(8)-F(2)) = 10

6 0

2 years ago