All categories

3 years ago

6.7x=5.2x+12.3 how to solve this ?

Mathematics

2 answers:

SVETLANKA909090 [29]3 years ago

8 0

$6.7x = 5.2x + 12.3\\6.7x- 5.2x = 12.3\\1.5x = 12.3\\x = \frac{12.3}{1.5} \\\\x=8.2\ \ Answer$

Arisa [49]3 years ago

5 0

$6.7x=5.2x+12.3\\\\6.7x-5.2x=12.3\\\\1.5x=12.3 \ \ /\cdot 10\\\\15x=123\ \ /:15\\ \\x=\frac{123}{15}\\\\x=\frac{41}{5}\\\\x=8.2$

You might be interested in

3x+1=8x-24 helpppppppp

Irina18 [472]

3x+1 =8x -24

3x -8x +1 = -24

-5x +1 = -24

-5x = -24 -1

-5x = -25

x = -25/-5 = 5

x = 5

4 0

3 years ago

Read 2 more answers

F(x) = 9x2 - 4<br><br> Find the zeros of the function

Delvig [45]

Answer:

I believe that the answer is 14.

Step-by-step explanation:

hope it helped

4 0

2 years ago

Perchlorate is a chemical used in rocket fuel. People who live near a former rocket-testing site are concerned that perchlorate

ser-zykov [4K]

Answer:

$H_1 : \mu > 24.5$

Step-by-step explanation:

From the given information:

The sample size is 28

The population mean is 24.5 (ppb)

The sample mean is 225.3 (ppb)

Thus, the null and the alternative hypothesis can be computed as:

Null hypothesis:

$H_o : \mu \le 24.5$

Alternative hypothesis:

$H_1 : \mu > 24.5$

8 0

2 years ago

(b) dy/dx = (x - y+ 1)^2

Elanso [62]

Substitute $v(x)=x-y(x)+1$ , so that

$\dfrac{\mathrm dv}{\mathrm dx}=1-\dfrac{\mathrm dy}{\mathrm dx}$

Then the resulting ODE in $v(x)$ is separable, with

$1-\dfrac{\mathrm dv}{\mathrm dx}=v^2\implies\dfrac{\mathrm dv}{1-v^2}=\mathrm dx$

On the left, we can split into partial fractions:

$\dfrac12\left(\dfrac1{1-v}+\dfrac1{1+v}\right)\mathrm dv=\mathrm dx$

Integrating both sides gives

$\dfrac{\ln|1-v|+\ln|1+v|}2=x+C$

$\dfrac12\ln|1-v^2|=x+C$

$1-v^2=e^{2x+C}$

$v=\pm\sqrt{1-Ce^{2x}}$

Now solve for $y(x)$ :

$x-y+1=\pm\sqrt{1-Ce^{2x}}$

$\boxed{y=x+1\pm\sqrt{1-Ce^{2x}}}$

3 0

3 years ago

How many tenths are there in 2.7?

svetlana [45]

Answer:

One,,,,,,,,,,,,,,,,,,,,,,

3 0

2 years ago

Read 2 more answers