How do you solve this math problem 6x-5y=712x-10y=1
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Then plugging them in to find the values of the x and y foe the equation.. thats part 2
I wont lie these answer just look weird and could be wrong... but in math thats kinda normal so im not 100% but hopefully I was able to help in some way
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-2
4
Plz!!! i really need help with this
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Answer:
3002
Step-by-step explanation:
i hope i helped
*2 3/5
*1 2/5
*2 1/5
*2 2/5
Answers
Answer:
2
Step-by-step explanation:
Whole numbers can be seen as the number over 1. So, 3 can also be written as . To do
x
you just multiply across (3x4 and 1x5). Doing so gets you
. Since 12 is bigger than 5, you need to find out how many times 5 fits into 12, which is 2 times. This means 2 is the whole number, however you're still left with 2 from the fraction
, since 2x5 is just 10. You write the remaining 2 as
, because that's what the original denominator was. The final answer is 2
.
2y+2=3y/2
Please help me
Answers
Answer:-4
Step-by-step explanation:
2y+2=3y/2
Cross multiply
2(2y+2)=3y
Open bracket
4y+4=3y
Collect like terms
4y-3y=-4
y=-4
Answers
Answers
Answer: 20 hours
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Explanation:
We have two workers, more or less. Worker A gets the job done in 5 hours. Worker B comes along to help. If A and B work together, they get the job done in 4 hours. This assumes neither worker hinders the other.
Worker A's rate is 1/5 of a job per hour. In other words, after 1 hour, 1/5 of the job is done.
The combined rate is 1/4 for similar reasoning
Worker B's rate is 1/x where x represents how long it takes worker B to get the job done on its own.
The equation to solve is
1/5 + 1/x = 1/4
Note how 1/5 and 1/x represents the sum of the individual rates to get the combined rate 1/4
To solve this equation, it helps to clear out the fractions. Multiply every term by the LCD 20x
20x(1/5 + 1/x) = 20x(1/4)
20x(1/5) + 20x(1/x) = 20x(1/4)
4x + 20 = 5x
From here you can probably see solving this is relatively easy
4x+20 = 5x
20 = 5x-4x
20 = x
x = 20
Therefore, it will take 20 hours for worker B to get the job done on its own.
Going back to the processing context, it takes 20 hours for the new processor to download the movie. This is where the new processor is working alone without help from the original processor.
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Side note: downloading a movie really depends on internet speed rather than processor speed.
-x + 2y = 16
4x - 8y = -64
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Multiply first equation by -4
You would get the same equation as the second one