Sam downloaded four applications for $2.99 each to her cell phone. The remaining applications that Sam purchased cost $1.99 each.
If she downloaded x total applications, which of the following equations can be used to find how much Sam spent on cell phone application downloads?
A: y = 11.96(x - 4) + 1.99
B: y = 1.99x + 11.96
C: y = 11.96x + 1.99
D: y = 1.99(x - 4) + 11.96
looks like D to me
To find how much Sam spent on cell phone application downloads, we need to multiply the number of applications by their respective prices and add them together.
The first four applications cost $2.99 each, so the total cost for these applications would be 4 * $2.99.
The remaining applications cost $1.99 each, and since we don't know how many of those Sam downloaded, we'll represent it with x.
Thus, the equation can be written as:
y = (4 * $2.99) + ($1.99 * x)
Now let's simplify the equation:
y = $11.96 + $1.99x
So, the correct equation is:
A: y = 11.96(x - 4) + 1.99