3 years ago

How many solutions dose this system have ? X+4y=6 y=2x-3

Mathematics

1 answer:

Effectus [21]3 years ago

8 0

Replacing y by x in the first line we'll get x+8x-12=6, so 9x=18, x=2, y=1 being the only solution

You might be interested in

Derek runs 4 laps around the track. If each lap around the track is 0.25 miles long, and he starts and stops in the same locatio

Alex

The answer is B) 0 miles. Because displacement is the shortest distance between starting point and ending point. Since, his starting point and ending point is the same, hence, his displacement is 0 miles.

8 0

3 years ago

Solve Ax + By = -C for x.<br> Ox=-By-C<br> А<br> x=-By+C<br> Ox=By=0

dimulka [17.4K]

Answer:

$\textbf{Option 1}\\$

Step-by-step explanation:

$\textup{Given $ Ax + By = -C$}\\\textup{Subtracting $By$ on both sides, we get,}\\$ Ax = -C -By $\\$

$\textup{Dividing by $A$ on both sides, (Assuming $A$ is not equal to zero) we get }\\$$ x = \frac{-By -C}{A}$$$

3 0

2 years ago

Rachelle has $6.30 in nickels and quarters in her coin purse. The number of nickels is twice the number of quarters. How many co

timurjin [86]

Each group of 2 nickels and 1 quarter has a value of $0.35. Rachelle has $6.30/$0.35 = 18 such groups.

Rachelle has 18 quarters and 36 nickels.

5 0

2 years ago

WHAT IS THE SQUARE ROOT OF 400

snow_tiger [21]

The square root of 400 is 20

7 0

3 years ago

Read 2 more answers

If someone does this I'll give you 5 stars and follow you!

Sonja [21]

Answer:

The picture is really blurry, i can't see the questions

6 0

2 years ago