Answer:
I think it is
Step-by-step explanation:
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I believe it is 3,4 4,5 3,6
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)
Step-by-step explanation:
I AM REALLY HELPFUL YOU PLEASE LIKE ME THE ANSWER
Answer:
Step-by-step explanation:
At least means greater than or equal to, so that is the symbol we will use. Now, we want the inequality to compare the distance she plans to jog and the amount of time jogged multiplied by the speed, since time times speed equals distance.
Writing this out we get 1.5 ≤ 3.75x
so 1.5 will always be less than or equal to the distance jogged. let me know if there is something you don't understand. But after this just solve for x.