All categories

2 years ago

32 is 4 more than twice a number. What is the number?

Mathematics

1 answer:

fiasKO [112]2 years ago

5 0

Answer:

The number you are looking for is 14.

You might be interested in

The value of x in the proportion 1/2:2/3 = 3/4:x is

Ratling [72]

To change 1/2 to 3/4 you multiply by 3/2 so then multiply 3/4 by 3/2 and you get 6/6 or 1...the answer is 1

3 0

2 years ago

Read 2 more answers

What is the surface area of the cylinder with height 4 mi and radius 3 mi? Round your answer to the nearest thousandth.

Norma-Jean [14]

Answer:

The surface area of the cylinder will be "131.88".

Step-by-step explanation:

The given values are:

Height of cylinder,

h = 4 m

Radius of cylinder,

r = 3 m

As we know,

The surface are of cylinder is:

⇒ $A_s=2 \pi r(h+r)$

On substituting the values, we get

⇒ $=2\times 3.14\times 3(4+3)$

⇒ $=18.84\times 7$

⇒ $=131.88$

5 0

2 years ago

Ine L has equation 2x - 3y = 5. Line M passes through the point (3, -10) and is parallel to line L. Determine the equation for l

Ira Lisetskai [31]

First of all, let's find the slope of line L. To find the slope of a line, you write it in the explitic form $y = mx+q$ , and consider the coefficient $m$ . So, we have

$2x - 3y = 5 \iff 3y = 2x-5 \iff y = \dfrac{2}{3} x - \dfrac{5}{3}$

So, the slope of line L is 2/3.

Two lines are parallel if they have the same slope. So, line M has slope 2/3 as well, and we know that it passes through the point (3, -10).

When you are given the slope $m$ and a point $(x_0,y_0)$ of a line, its equation is given by

$y-y_0=m(x-x_0)$

So, if you plug your values, you have

$y+10 = \dfrac{2}{3}(x-3)$

which you can simplify into

$y+10 = \dfrac{2}{3}x-2$

$y = \dfrac{2}{3}x-12$

7 0

3 years ago

Find x and y in 3^(2x-y)=1 and 16^x/4=8^(3x-y)

Lostsunrise [7]

Answer:

6x-3y

Step-by-step explanation:

7 0

2 years ago

Helium is used for balloons because it is less dense than air. This is what allows helium balloons to rise. Suppose a helium- ai

Kay [80]

Answer: Option A

About 0.02 pounds

Step-by-step explanation:

We know that density is defined as:

$d = \frac{m}{v}$

Where

d is the density

m is the mass

v is the volume

We want to calculate the helium-air mass of a spherical balloon and we know its density and the diameter of the balloon.

Then we can calculate its mass.

1) We use the diameter of the spherical globe to calculate its volume.

The volume of a sphere is:

$V = \frac{4}{3}\pi r ^ 3$

and

$radius = \frac{diameter}{2}$

$V = \frac{4}{3}\pi(\frac{d}{2}) ^ 3\\\\V = \frac{4}{3}\pi(\frac{1}{2}) ^ 3$

$V= 0.5236\ ft^3$

2) Use the density formula to find the mass

$d = \frac{m}{v}$

$m = vd$

$m = (0.5236\ ft^3)*(0.04\ \frac{pound}{ft^3})\\\\m = 0.02\ pounds$

<em>The answer is 0.02 pounds</em>

5 0

2 years ago