So let's say quarters = x and dimes = y. You'd then put x + y = 77 (for a total of 77 coins). And your second equation would be .25x + .10y = 12.50 (.25 for the total value a quarter holds and .10 for a total value a dime holds). Then you'd do matrices on a calculator.
<span>Answer:
a manufacturing process has a 70% yield, meaning that 70% of the porducts are acceptable and 30% are defective. If three of the products are randomly selected, find the probability that all of them are acceptable.
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Ans: 0.7^3 = 0.3430.</span>
Answer:
$1002516150
Step-by-step explanation:
200200200 + 404040 - 101010 = 200503230
200503230 x 5 = 1002516150