Answer:
To solve the given expression, let's break it down step by step:
[(5x $4) + (8x $10)] / [(4 x $12) + (8 x $60)] x 100
First, let's simplify the numerator:
(5x $4) + (8x $10) = (5 * 4x) + (8 * 10)
= 20x + 80
Next, let's simplify the denominator:
(4 x $12) + (8 x $60) = (4 * 12) + (8 * 60)
= 48 + 480
= 528
Now, let's substitute the simplified numerator and denominator back into the expression:
[(20x + 80) / 528] x 100
Next, let's simplify the fraction:
(20x + 80) / 528 = 20(x + 4) / 528
Finally, let's multiply the fraction by 100:
20(x + 4) / 528 x 100 = 2000(x + 4) / 528
So, the simplified expression is 2000(x + 4) / 528.