APPROACH TO LINEAR EQUATIONS IN TWO VARIABLES Fix the following systems: 1 . x y 8 x y two

by graphing

by replacement

by removal

by Cramer's rule

2 .

2 x 5 y being unfaithful zero x 3y 1 0

by graphing

by simply substitution

by elimination

simply by Cramer's regulation

3.

4 by five y 7 0 2 x 3 con 11 zero

by graphing

by substitution

by eradication

by Cramer's rule

CASE 1: intersecting lines independent & constant m1m2

CIRCUMSTANCE 2: seite an seite lines inconsistent m1 sama dengan m2; b1 b2

CASE 3: coinciding lines consistent & dependent m1 = m2; b1 sama dengan b2

Classify the following program, whether (a) intersecting, (b) parallel, or perhaps (c) coinciding lines 1 ) 3 x 4 sumado a you 0 3 back button 4 y 2 0 3 x 4 sumado a one particular 0 6 times 8 y 2 0

Resolve the following systems in three variables: 1 . 3 times 5 y z 1 installment payments on your times con 2 x 4 sumado a 3z three or more 3 times a couple of y 2 unces zero

________

3 y z 1 x two z 7

2 .

________

three or more.

2 x 5 y you zero your five x 2 y a couple of 0 2 x y 1 4 x 2 con a few x 2 sumado a one particular zero 2 times con you

________

four.

________

5.

________

1 x Resolve 1 x

a couple of 3 sumado a 3 2 y

Problem solving Form a system of equations from the concerns given below. A) (MIXTURE TROUBLE 1) How many pounds of a 35% salt solution and a 14% salt solution should be combined in order that a 60 pounds of the 20% option is received? B) (UNIFORM MOTION) Two motorists start at the same time via two spots 128 km apart and drive toward each other. One particular drives 10kph than the other. If they met following 48 moments (that is usually, 4/5 hr), find the typical speed of every. C) A dietician is definitely preparing food intake consisting of food A, N, and C as proven in the stand below. Fat Protein Carbs If the food must give exactly twenty-four units of fat, 25 Food A 3 a couple of 4 units of protein, and 21 years old units of carbohydrate, how Food W 2 three or more 1 various ounces of each and every food needs to be used? Meals C 3 3 2 ...