Maria solved the equation 34=+19
34
=
x
+
19
. although her final answer was correct, she could have found it in a simpler way. which sentence best explains why?

She could've subtracted 19 from both sides of the equation in the second step to find the value of immediately, rather then add 19 to both sides.

the answer is 200

step-by-step explanation:

the way the question is worded, it seems to imply the $264 interest is simple interest, not compound interest.

the simple interest for 2 years is $264; the simple interest for 1 year is $132.

$132 interest on a $600 investment means an interest rate of (132/600)*100 = 22%.

the value of $200 at 22% interest compounded annually for three years is

200%281.22%29%5e3

the amount of interest is that value, minus the original $200.

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