- Solve 2m + n = 2 and 3m - 2n = 3 using substitution.
We can use the substitution method to solve linear equations of this form. Let's solve for m & n.
To solve a pair of equations using substitution, first solve one of the equations for one of the variables. Then substitute the result for that variable in the other equation.
Choose one of the equations and solve it for m by isolating m on the left-hand side of the equal sign.
Subtract n from both sides of the equation.
Divide both sides by 2.
Multiply 1/2 times -n+2.
Substitute 
for m in the other equation, 3m-2n=3.
Multiply 3 times .
Add 
to -2n.
Subtract 3 from both sides of the equation.
Divide both sides of the equation by 
, which is the same as multiplying both sides by the reciprocal of the fraction.
Substitute 0 for n in 
. Because the resulting equation contains only one variable, you can solve for m directly.
The system is now solved.
Answer:
Step-by-step explanation:
∠1 = 38 {Vertically opposite angles}
∠2 = 39 + 36 = 75
Exterior angle equals the sum of opposite interior angles.
x = ∠1 +∠2
= 38 + 75
x = 113
Answer:
- 2 cups ⇔ 16 fluid ounces
- 96 ounces ⇔ 6 pints
- 12 pints ⇔ 24 cups
- 4 quarts ⇔ 1 gallon
<em>Also see attached</em>
Answer:
the answer should be 5/16
If they give you the total price and the price after the discount you can use this "formula" to solve it p/100=b/a where p is the percentage, a is the total price and b is the price after the discount.
