if you add up all the marbles and then put it as the denominator then put 2 on top. divide. then do the same except this time take 1 minus the amount of total marbles . put it as the denominator and then 2 on top. divide. next take both numbers and make them a fraction. turn to simplest form. ithink
C represents the amount of function lateral equation
Answer:
4 liters of 5% solution and 16 liters of 17.5% solution we need.
Step-by-step explanation:
Let us assume that x liters of 5% solution and y liters of 17.5% solution are taken.
So, x + y = 20 ........ (1)
As the final solution is of 15%, so we can write

⇒ 5x + 17.5y = 300 ......... (2)
Now, solving equations (1) and (2) we get,
17.5y - 5y = 200
⇒ 12.5y = 200
⇒ y = 16 liters
Hence, x = 20 - y = 4 liters.
Therefore, 4 liters of 5% solution and 16 liters of 17.5% solution we need. (Answer)





Now,







Area of rectangle = 38.5 cm².
Answer:
B. Dollar-cost averaging.
Step-by-step explanation: