Answer: (B is the answer.
Step-by-step explanation: The graph I attached corresponds with B.
Cross -3 by -2.
Answer:
1. c
2. lines l & m are parallel because of they are equal distances.
3. A is wrong: if you add and subtract for each of the soloutions you end up with x equaling 4 not 8
4. x= 63 y=45 z=113
Step-by-step explanation:
i think this is correct. If it isn't im happy to correct it!
We must mix 240 liters of the 51 % solution and 10 liters of the 26 % solutions to produce 250 liters of 50 % solution.
<h3>How to prepare a solution by using weighted averages</h3>
Herein we have to prepare a solution with fertilizers by mixing two <em>different</em> solutions. The amount needed of the 51 % solution can be found by weighted averages:
(50/100) · (250 L) = (51/100) · x + (26/100) · (250 - x)
50 · 250 = 51 · x + 26 · 250 - 26 · x
24 · 250 = 25 · x
x = 240
We must mix 240 liters of the 51 % solution and 10 liters of the 26 % solutions to produce 250 liters of 50 % solution.
To learn more on weighted averages: brainly.com/question/18554478
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Answer:
4/5
Step-by-step explanation:
1/2= 5/10
3/10+5/10=8/10
8/10= 4/5