Answer:
Solution ( , )
Step-by-step explanation:
Given : 3x - 2y = 12 and 6x + 3y = 21.
To find : Solve the system of equations and choose the correct ordered pair.
Solution : We have given
3x - 2y = 12 -------(1)
6x + 3y = 21-------(2)
Multiplying the equation(1) by 2 , it become.
6x - 4y = 24 .
Now subtract it from equation (2).
6x + 3y = 21
(-)6x - (+)4y = (-)24 .
____________
0 + 7y = -3.
On dividing both sides by 7.
y = .
Plug the y = in equation 2 .
6x + = 21
6x + = 21.
On multiplying both sides by 7
42x -9 = 21 *7 .
42x -9 = 147 .
On adding both sides by 9
42x = 147 + 9 .
42x = 156.
On dividing both sides by 42.
x = .
x = .
Therefore, Solution ( , )
Answer:
72 dollars
Step-by-step explanation:
We can write this as a ratio
28 kg 36 kg
------------ = ---------------
56 dollars x dollars
Using cross products
28x = 56*36
Divide each side by 28
28x/28 = 56*36/28
x =72
Sent a picture of the solution to the problem (s).
Answer:
5
6
7
Step-by-step explanation:
it's asking what you could replace g with to make the problem true.
friendly reminder: ≥ means greater than or equal to
think of the alligator's mouth opening to the most food
the line under it means "or equal to"
hope this helps, have a wonderful day <3
Y= -0.3× + -0.7 think that's the equation