The water flows 6 liters per minute in the other branch of pipe.
Step-by-step explanation:
Given,
Flow of water in main pipe = 10L/min
Flow of water in one branch = 4L/min
Flow of water in other branch = x
Flow of water in main pipe = Flow in one branch + Flow in other branch
The water flows 6 liters per minute in the other branch of pipe.
The two original functions are 4x+9y=7 and 4x-9y=9
To use the combination method, add all the values of the two equations together to cancel out one of the variables
4x+4x+9y-9y=7+9
8x=16
8x/8=16/8
x=2
4(2)+9y=7
8+9y=7
8-8+9y=7-8
9y=-1
y=-
Answer:
Step-by-step explanation:use Slader if u have a textbook
The answer would be 8.5. 8.54 rounds down to 8.54.
Hope this helps!
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Answer:
The total money she saved in a year = X + 12Y.
Step-by-step explanation:
Mary got a piggy bank as a gift.
Sum of money in the piggy bank while she got it as a gift = X cents
Sum of money she saved = Y cents per month
1 year = 12 months
So, sum of money she saved in 1 year = Y × 12
= 12Y
Hence, the total money she saved in a year = X + 12Y.
