Ask question

Ask question

All categories

3 years ago

5

(2)/(3) =( 4)/( 3+x) help give brainliest if correct and explanation please

2 answers:

sweet-ann [11.9K]3 years ago

8 0

(2)/(3)=(4)/(6) (3+x)=6 x=3

Juli2301 [7.4K]3 years ago

7 0

Answer:

(2)/(3) =( 4)/( 3+x)

Cross multiply

2*(3+x)= 4*3

Solve bracket

6+2x=12

Subtract 6 from both sides

2x=6

Divide both sides by 2

x=3

Hope it helps :-)

You might be interested in

Can anyone help me with this? Thanks!

Katarina [22]

Answer:

Step-by-step explanation:

5^2+8^2=c^2

25+64=89

89=c^2

square root of 89 is 9.43

9.43=the square root of c^2

6 0

3 years ago

jenna has a piece of paper that is 84 square inches in area. it is 10 1/2 inches long. what is the length of the piece of paper

skad [1K]

Here is the solution based on the given problem above.
Given: Area of the piece of paper = 84 square inches
Width = 10 1/2 or 10.5 inches long
? = length of the piece of paper
To find the area of an object, the formula would be A= L x W
Now, let's substitute the given values above
84in2 = L(10.5in)
Now, divide both sides with 10.5 and we get 8.
L = 8 inches.
Therefore, the length of the paper is 8 inches.
Hope this solution helps.

4 0

3 years ago

HELP ASP SHOW UR WORK WILL GET BRAINILEST AND 10 points

Alona [7]

-15x+8x=-44-12
-7x=-56
X=8

8 0

2 years ago

Read 2 more answers

A closed-top cylindrical container is to have a volume of 250 in2. 250 , in squared , . What dimensions (radius and height) will

miv72 [106K]

Answer:

radius r = 3.414 in

height h = 6.8275 in

Step-by-step explanation:

From the information given:

The volume V of a closed cylindrical container with its surface area can be expressed as follows:

$V = \pi r^2 h$

$S = 2 \pi rh + 2 \pi r^2$

Given that Volume V = 250 in²

Then;

$\pi r^2h = 250 \\ \\ h = \dfrac{250}{\pi r^2}$

We also know that the cylinder contains top and bottom circle and the area is equal to πr²,

Hence, if we incorporate these areas in the total area of the cylinder.

Then;

$S = 2\pi r h + 2 \pi r ^2$

$S = 2\pi r (\dfrac{250}{\pi r^2}) + 2 \pi r ^2$

$S = \dfrac{500}{r} + 2 \pi r ^2$

To find the minimum by determining the radius at which the surface by using the first-order derivative.

$S' = 0$

$- \dfrac{500}{r^2} + 4 \pi r = 0$

$r^3 = \dfrac{500 }{4 \pi}$

$r^3 = 39.789$

$r =\sqrt[3]{39.789}$

r = 3.414 in

Using the second-order derivative of S to determine the area is maximum or minimum at the radius, we have:

$S'' = - \dfrac{500(-2)}{r^3}+ 4 \pi$

$S'' = \dfrac{1000}{r^3}+ 4 \pi$

Thus, the minimum surface area will be used because the second-derivative shows that the area function is higher than zero.

Thus, from $h = \dfrac{250}{\pi r^2}$

$h = \dfrac{250}{\pi (3.414) ^2}$

h = 6.8275 in

7 0

3 years ago

The length of a spring when it’s at rest is measured to be 0.56 centimeter. How many significant figures are there in this measu

Ivahew [28]

Answer:

Option B - 2

Step-by-step explanation:

We have given, the length of a spring when it’s at rest is measured to be 0.56 centimeter.

We have to find, how many significant figures are there in this measurement?

Solution :

The rules to get the significant figure are

Non-zero digits are always significant.

Any zeros between two significant digits are significant.

A final zero or trailing zeros in the decimal portion ONLY are significant.

The given measurement is 0.56 cm.

It has two trailing zeros in the decimal i.e. 5 and 6.

There are only two significant figures.

Therefore, Option B is correct.

8 0

4 years ago

Read 2 more answers