3 years ago

3x+4y=-23 2y-x=-19 What is the solution (x,y) to the systems of equations above?

1 answer:

3 0

If we multiply the bottom equation by 2 and move x to the right, it becomes:

4y = 2x-38

Now we can substitute it for the 4y in the top equation:

3x + (2x-38) = -23 => 5x = -23+38 => 5x = 15 => x=3

Then 4y = 2*3-38 => y = -8

So the solution is (3,-8)

You might be interested in

If X and Y vary directly, as x decreases, what happens to the value of y?

diamong [38]

As x decreases y also decreased

5 0

2 years ago

The Lions did not score fewer points than the Bears. The Lions scored fewer points than the Tigers but more points than the Dolp

vivado [14]

The answer is the Dolphins

5 0

3 years ago

(−7.9 + (−3.4)) + (8.2 + 2.1)

Natasha_Volkova [10]

The answer is -1, when adding both sides.

8 0

2 years ago

Priya measured the length of lizard to be 11 cm. The actual length is 12 cm. Find the % error.

Aleksandr [31]

Answer:

8.33%

Step-by-step explanation:

Formula for percent error:

$|\frac{observed value - expected value}{expected value} | * 100%$

Using this formula, we get:

$|\frac{11-12}{12} |* 100 = \frac{100}{12} = 8.33$

If you found this answer helpful please consider leaving 5 stars, giving it a like, or if you asked this question, mark this answer as Brainliest. Thanks!

8 0

2 years ago

What 38x28 becase i d k

nlexa [21]

Answer: 1,064

Explanation:

38x28=

5 0

2 years ago

Read 2 more answers