In the systems of equation it already gives you the solution for x which is -2 so all you have to do is substitute -2 into the first equation and solve for y.

y= 2/3x + 3

x= -2

Substitute x for -2

y = $\frac{2}{3}* \frac{-2}1} + 3$

y= $\frac{-4}{3}$ + $\frac{3}{1}$

y = $\frac{5}{3}$

so now you have the solution like this $(-2,\frac{5}{3})$

8 0

3 years ago

Evaluate the determinant for the following matrix [144] [522] [155]

WARRIOR [948]

Matrix :

1    4    4

5 2    2

1    5    5

=> Determinant =

1 * (2*5 - 2*5) - 4 * (5*5 - 1*2) + 4 * ( 5*5 - 2*1)

= 1*(10 - 10) - 4*(25 - 2) + 4*(25 -2) = 1*0 + 4* 23 + 4*(25 - 2) = 0 - 4*23 + 4*23 = 0

Answer: 0

8 0

3 years ago

A sauce recipe uses 4 cans of tomatoes in every 2 1/2 quarts.

Art [367]

Answer:

1 3/5

Step-by-step explanation:

4 / 2 1/2 =1 3/5

1 3/5 cans are used per quart.

8 0

2 years ago