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Andrew [12]
3 years ago
12

Use the elimination method to sole the system of equations. choose the correct ordered pair.

Mathematics
2 answers:
Crank3 years ago
8 0
(X,Y) = (4,0)


That’s what I got.
navik [9.2K]3 years ago
6 0

Answer:

(4,0)

Step-by-step explanation:

4(-x + 5y) = 4(-)

4x + 3y = 16

-4x + 20y = -16

4x + 3y = 16

23y = 0

23y/23 = 0/23

= 0

y = 0

then for x

we substitute the value gotten from y into the equation.

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An equation is shown below:
Alinara [238K]
Remove parentheses and combine like terms...

then subtract constants from both sides

isolate variables and constants

use the division property and solve for x



3 0
3 years ago
PLEASE HELP ME 50 POINTSS 1!1!1!1!1!1!1!1!1!11!1!1!1!
timofeeve [1]

Answer:

1) the baseball will take approx 0.514 seconds to move 18 meters.

35/1 = 18/x

x = 0.514s

2)  the car's average speed is 60 km per hour.

870/14.5 = x/1

x = 60h

3 0
3 years ago
Find the inverse <br> f(x)=(2x-3)^2 -1
boyakko [2]
2 is the answer ok great
8 0
3 years ago
Rita caught 5 fish. The lengths, in inches, of each tish are listed.
Aloiza [94]

Given:

The lengths, in inches, of each fish are listed:

9, 13, 9, 21, 18

To find:

The statement that best represents the meaning of the range for these data.

Solution:

The given data values are:

9, 13, 9, 21, 18

Arrange the data values in ascending order.

9, 9, 13, 18, 21

Here, the maximum value is 21 and the minimum value is 9.

We know that,

\text{Range}=\text{Maximum value}-\text{Minimum value}

\text{Range}=21-9

\text{Range}=12

The range of the data set is 12. Therefore, the difference between the shortest and longest fish is 12 inches.

8 0
3 years ago
The picture below shows the path that Puppy Liz is running. The electrical post is 40 feet tall. Puppy Liz usually starts at the
zimovet [89]

Answer:

Puppy Liz runs 34.61 ft.

Step-by-step explanation:

From the figure we can extract two triangles: one with angle 34° and adjacent 40ft, the other with angle 34°+23° and adjacent 40ft.

Let us call the distance from the pole to the fire hydrant d_1, and the distance from the pole to the bench d_2, then the distance d from the fire hydrant to the bench is

d=d_2-d_1

which is the distance the Puppy Liz runs.

Now, from trigonometry we have

tan(34^o)=\frac{d_1}{40}\\\\\therefore d_1= 40*tan(34^o)\\\\ \boxed{d_1=26.98ft}

and

tan(34^o+23^o)=\frac{d_2}{40}

d_2=40*tan(34^o+23^o)\\\\\boxed{d_2=61.59}

Therefore, the distance d Puppy Liz runs is

d=d_2-d_1

d=61.59ft-26.98ft\\\\\boxed{d=34.61ft}

6 0
4 years ago
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