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3 years ago

40(x-2)=2/5(x+4) Please help

Mathematics

1 answer:

kherson [118]3 years ago

8 0

Answer:

x = 68/33

Explanation:

Step 1: Simplify both sides of the equation.

Step 2: Subtract 2/5x from both sides.

Step 3: Add 80 to both sides.

Step 4: Multiply both sides by 5/198.

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What is the common reason for filing a 1040x

belka [17]

File a Form 1040-X to amend a tax return.

8 0

3 years ago

Please help me!!! Geometry question.

tigry1 [53]

Answer:

The volume of the figure is $(\frac{l^{3}}{3})[\frac{\pi }{2}-1]\ units^{3}$

Step-by-step explanation:

we know that

The volume of the figure is equal to the volume of the cone minus the volume of the square pyramid

step 1

Find the volume of the cone

The volume of the cone is equal to

$V=\frac{1}{3}\pi r^{2}h$

we have

$r=\frac{l\sqrt{2}}{2}\ units$ ----> the diagonal of the square base of pyramid is equal to the diameter of the cone

$h=l\ units$

substitute

$V=\frac{1}{3}\pi (\frac{l\sqrt{2}}{2})^{2}(l)$

$V=\frac{1}{6}\pi (l)^{3}\ units^{3}$

step 2

Find the volume of the square pyramid

The volume of the pyramid is equal to

$V=\frac{1}{3}Bh$

where

B is the area of the base

h is the height of the pyramid

we have

$h=l\ units$

$B=l^{2}\ units^{2}$

substitute

$V=\frac{1}{3}l^{2}(l)$

$V=\frac{1}{3}l^{3}\ units^{3}$

step 3

Find the volume of the figure

$\frac{1}{6}\pi (l)^{3}\ units^{3}-\frac{1}{3}l^{3}\ units^{3}=(\frac{l^{3}}{3})[\frac{\pi }{2}-1]\ units^{3}$

5 0

3 years ago

the perimeter of a rectangular garden is 84 feet. write and solve the system of equations that can be used to find the dimension

scoray [572]

Answer:

The length is 22.5 and the width is 19.5

Step-by-step explanation:

2L + 2W = P

2L + 2W = 84

W + 3 + W + 3 + W + W= 84

4W + 6 = 84

4W = 78

W = 19.5 L = 19.5 + 3 = 22.5

I hope this helps, have a nice day! :D

6 0

2 years ago

A watering can dispenses water at the rate of 0.3 gallon per minute. The original volume of water in the can was 7 gallons. Whic

Rudiy27

Answer:

A. {(1, 6.7), (2, 6.4), (3, 6.1)}

Step-by-step explanation:

The watering can dispenses water at a rate of 0.3 gallon per minute and the original volume of water in the can was 7 gallons.

Let y represent the volume of water in the can in gallons

Let x represent time in minutes

f(x) = y = 7 – 0.3(x)

When x = 1,

y = 7 – 0.3(1)

= 7 – 0.3

= 6.7

The pair will be (1, 6.7)

When x = 2,

y = 7 – 0.3(2)

= 7 – 0.6

= 6.4

The pair will be (2, 6.4)

When x = 3,

y = 7 – 0.3(3)

= 7 – 0.9

= 6.1

The pair will be (3, 6.1)

The set of ordered pairs shows the volume of water in the can in gallons (y) as a function of time in minutes (x) from the first minute after the can starts dispensing water is {(1, 6.7), (2, 6.4), (3, 6.1)}

4 0

3 years ago

Wegnerkolmp2741o plz help me only wegnerkolmp2741o

34kurt

Answer:

1. Triangular prism

5 faces
6 vertices
9 edges

2. Trapezoidal prism

6 faces
8 vertices
12 edges

3. Pentagonal prism

7 faces
10 vertices
15 edges

4. Hexagonal prism

8 faces
12 vertices
18 edges

7 0

3 years ago