Question

Please help I'm tired of people who want to answer to just to steel points

Answer 1

• a = 7.95
• c = 7.4

Explanation:

Given system of equation to us is ,

3a + 2c = 38.65

1a + 2c = 22.75

Here the given system of equation are linear equations in two variables. We can use various methods to solve them like substitution method, elimination method, etc . Here i will make use of elimination method. For that ;

Subtract both the equations , that would result to ;

3a + 2c - ( 1a + 2c ) = 38.65 - 22.75

3a + 2c - 1a - 2c = 15.9

2a = 15.9

a = 15.9/2

a = 7.95

To find out the value of c , plug in a = 7.95 in any of the two equations, as ;

a + 2c = 22.75

2c = 22.75 - 7.95

2c = 14.8

c = 14.8/2

c = 7.4

Hence the value of a is 7.95 and that of c is 7.4 .