2 years ago

Is x=-4 and y=3 a solution of the equation 2x -5y=-23

Mathematics

2 answers:

pishuonlain [190]2 years ago

7 0

Answer:

Yes

Step-by-step explanation:

First you pull them into the equation

2(-4)-5(3)=-23

Distribute

-8-15=-23

-23=-23

Mamont248 [21]2 years ago

4 0

Is x=-4 and y=3 a solution of the equation 2x -5y=-23

2x -5y=-23
2(-4) - 5(3) =-23
-8 - 15 = -23
-23 = -23

Therefore, x = 4 and y = 3 is a solution to 2x -5y=-23.

Hope that helps!

You might be interested in

Work out 140-3^2×(8+4)+6÷2

kiruha [24]

Answer:

140 - 9 (12) + 3

140 - 108 +3

140 - 111

= 29

4 0

3 years ago

What is the IQR (interquartile range) of the data set? 33, 37, 45, 61, 64, 67

Nataly_w [17]

solution is first os all find median

median is( 45+61)/2=53

find median of no in left of 53

it is 37

find median of no in right of 53

it is 64

now interquartile range=64-53=27

4 0

3 years ago

What is the distance between the points (2, 4) and (7, 16)? 13 15.4 16 24

Veronika [31]

If you do the distance formula you get 13 as the answer.

3 0

3 years ago

Meryl needs to cut down 10.5 trees for every 5 cabins she builds.

Zepler [3.9K]

Answer:

for seven cabins it should be 14.7 trees, im not sure about 3 cabins, sorry :(

5 0

3 years ago

Read 2 more answers

What is the result of adding these two equations? \begin{aligned} 2x+3y &= -5 \\\\ 5x-y &= -12 \end{aligned} 2x+3y 5x−y

EleoNora [17]

Answer:

$7x+2y = -17$

Step-by-step explanation:

We have the following equations:

$2x+3y = -5$

$5x-y = -12$

If we want to add these equations, we just need to add x-terms, y-terms and independent terms.

$(2x+5x)+(3y-y) = -5-12$

$7x+2y = -17$

I hope it helps you!

7 0

3 years ago