All categories

3 years ago

What is the answer to -10(x-1)=10-10x

Mathematics

2 answers:

Marina86 [1]3 years ago

7 0

x = any variable.

-10 * x = -10x

-10 * -1 = 10

-10x + 10 = 10 - 10x

goldfiish [28.3K]3 years ago

4 0

If you multiple and subtract some of those numbers you will maybe get your answer but the answer is -90

You might be interested in

A biologist estimated that the current population of ladybugs in the region was 8.3 x 106. He predicts that a swarm of

stiks02 [169]

Answer:

iId

Step-by-step explanation:

6 0

3 years ago

The base and sides of a container is made of wood panels. The container does not have a lid. The base and sides are rectangular.

vfiekz [6]

Answer:

Minimum surface area = $70.77 cm^2$

Step-by-step explanation:

We are given that

Width of container=x cm

Length of container=2x cm

Volume of container= $54 cm^3$

We have to find the minimum surface areas that this container will have.

Volume of container= $l\times b\times h$

$x\times 2x\times h=54$

$2x^2h=54$

$h=\frac{54}{2x^2}=\frac{27}{x^2}$

Surface area of container= $2(b+l)h+lb$

Because the container does not have lid

Surface area of container= $S=2(2x+x)\times \frac{27}{x^2}+2x\times x$

$S=\frac{162}{x}+2x^2$

Differentiate w.r.t x

$\frac{dS}{dx}=-\frac{162}{x^2}+4x$

$\frac{dx^n}{dx}=nx^{n-1}$

Substitute $\frac{dS}{dx}=0$

$-\frac{162}{x^2}+4x=0$

$4x=\frac{162}{x^2}$

$x^3=\frac{162}{4}=40.5$

$x^3=40.5$

$x=(40.5)^{\frac{1}{3}}$

$x=3.4$

Again differentiate w.r.t x

$\frac{d^2S}{dx^2}=\frac{324}{x^3}+4$

Substitute x=3.4

$\frac{d^2S}{dx^2}=\frac{324}{(3.4)^3}+4=12.24>0$

Hence, function is minimum at x=3.4

Substitute x=3.4

Then, we get

Minimum surface area = $\frac{162}{(3.4)}+2(3.4)^2=70.77 cm^2$

8 0

3 years ago

Solve for X.<br><br> -3/2(x-2)=45/14<br><br> Please show work.

ICE Princess25 [194]

Answer:

-1/7

Step-by-step explanation:

-3/2(x-2)=45/14

x-2=(45/14)/(-3/2)

x-2=(45/14)(-2/3)

x-2=-90/42

simplify -90/42 into -15/7

x-2=-15/7

x=-15/7+2

x=-15/7+14/7

x=-1/7

7 0

3 years ago

Read 2 more answers

(Help please)

Alecsey [184]

B.
Scale is 3:1
Just divide each side by 3 to get measures

8 0

3 years ago

Read 2 more answers

Which statement requires additional information to prove that a quadrilateral is a parallelogram?

Aleks [24]

Answer:

Step-by-step explanation:

If both pairs of opposite angles of a quadrilateral are congruent, then it's a parallelogram

7 0

3 years ago