What is the area of a parallelogram with a base of 8 3/4 feet and a height of 5 1/3 feet?

Find an ordered pair that is solution for linear equation 4x-5y=20

Eduardwww [97]

Answer:

(5,0) is the solution of the given equation.

(0,-4) is the solution of the given equation.

Step-by-step explanation:

Here, the given equation is: 4 x- 5y = 20

Now, we need to find a value for (x,y) such that the above equation is satisfied.

The ONLY POSSIBLE way to do this is Hit and Trial.

Let us substitute x = 0

Then the equation becomes : 4 (0) - 5y = 20

or, -5 y = 20 ⇒ y = -20/5 = - 4

So, for x = 0, y = - 4

So, (0,-4) will be the solution of the given equation.

Let us substitute y = 0

Then the equation becomes : 4 (x) - 5(0) = 20

or, 4 x = 20 ⇒ x = 20/4 = 5

So, for x = 5, y = 0

So, (5,0) will be the solution of the given equation.

We can try another substitution as well.

For any value of x, we will get a corresponding value of y. So, (x,y) will be the solution of the given equation.

8 0

2 years ago

1700000000 nm in scientific notation

OLEGan [10]

The answer is 1.7 x 10 to the power of 9

hope this helps

4 0

3 years ago

Peter has a set of polygonal tiles, where all the polygons are regular and have the same side length. He find that two pentagons

maxonik [38]

Answer:

24 sides

Step-by-step explanation:

Angle at a point = 360°

To find the number of degrees in each interior angle of a regular polygon, we make use of

180(n - 2)/n

There are 8 sides in a regular octagon,

Each interior of a regular octagon= 180(8-2)/8

= 6 * 180/8

= ¾ * 180

= 135°

The interior angle of a regular triangle (equilateral triangle) is 60°

The interior angle of the regular n-gon is given by

360° - 135 - 60°

= 165°

Since the interior angle is 165°

Then

180(n - 2)/n = 165 for the regular n-gon

Solving for n

Multiply both sides by n

180(n - 2) = 165n ------ Open the bracket

180n - 360 = 165n ----- Collect Like Terms

180n - 165n = 360

15n = 360 ----- Divide both sides by 15

n = 360/15

n = 24

Thus, the number of sides of the regular n-gon is 24

4 0

2 years ago

Write 0.46 as a fraction and a percent

nata0808 [166]

Answer: 23/50 and 46%

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

The price of an item yesterday was $120.Today the price fell to $78 find the percentage decrease

makvit [3.9K]

To find percentage decrease, we need to see how "much" of 120 was taken off.

So, let's call the percentage x (the percentage in decimal form).

120 * x = 78

so,

78/120 = x

.65 = x

So, our percentage in decimal form is .65, to get it to an actual percentage, we multiply it by 100 (since a percentage is out of 100)

The percentage decrease is 65%

7 0

3 years ago

Read 2 more answers