The solution for the first one is 1
The solution for the second one is (2,-6)
I'm not really sure about the third one.
<span>The value of A can only be 1, the value of C can only be -3, and the value of B is 0.</span>
The absolute value equation is
, if the solutions are x=2.5 and x=-3.5.
Step-by-step explanation:
The given is,
Two solutions: x = 2.5 and x = -3.5
Step:1
In this question we use reverse method of quadratic equation solve method,
From first solution, x = 2.5
x - 2.5 = 0..........................(1)
From the second solution, x = -3.5
x + 3.5 = 0.................(2)
From the equations (1) and (2),
( x - 2,5 ) ( x + 3.5 ) = 0
Multiply the equations,


Step:2
Check for solution,
..........................(3)
Substitute the value of x=2.5 in above equation,

6.25 + 2.5 - 8.75 = 0
0 = 0
Result:
The absolute value equation is
, if the solutions are x=2.5 and x=-3.5.
To solve this problem we first call x = number of action figures, y = number of dolles. A system of two equations with two unknowns must be made to describe the problem. The system is the following:
(x + 1) + y = 13
1/2 * x = y.
Then solving the system we have that x = 8 and y = 4.
Since we know that the number of action figures is twice as many dolls plus one, then x = 8 + 1 = 9.
Thus,
dollos = 4
action figures = 9
I am assuming you mean $37.52 per hour for the mechanic and $30.42 per hour for the assistant.
Simply multiply each of the hourly wages by 40 and compare the results by finding the difference.
Here:
$37.52 x 40 = $1500.80
$30.42 x 40 = $ 1216.80 When you subtract them you get $284 difference.