Answer:
$103
Explanation:
In order to determine how much money Sonny has, we need to write a mathematical equation to solve for x. We know how much money Sonny and Allan each have in terms of x, and we can add the two expressions together to equal a total amount of $407. This will be represented and simplified as follows:
- 2x + 3 + 6x + 4 = 407
- 8x + 7 = 407
Now we can solve the equation for x.
We know that x is equal to 50, so we can plug it back into Sonny's expression to find out how much money she has.
- 2(50) + 3 = 100 + 3 = 103
We can check our work by solving for the amount of money Allan has and then adding up the two amounts to make sure the total is $407.
- 6(50) + 4 = 300 + 4 = 304
- CHECK: $103 + $304 = $407