2 years ago

4x-5y=0 8x+5y=-60 what is the answer by substitution or elimination?

1 answer:

7 0

The answer is -5, -5 added by 5 cancels each other out. Then when you add 4x + 8x, you get 12x. So when you do 12x= -60, you get -5.

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umka2103 [35]

Answer: $40\ beats$

Step-by-step explanation:

Knowing the information provided in the exercise, you need to find the Least Common Multiple (L.C.M) in order to solve it.

You can follow these steps:

1- You must descompose 2, 5 and 8 into their prime factors:

$2=2\\5=5\\8=2*2*2=2^3$

2- And finally, you must multiply the commons and non commons with the highest exponent:

$L.C.M=2^3*5=40$

Therefore, the answer is: $40\ beats$

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notsponge [240]

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Step-by-step explanation:

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Tanya [424]

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Step-by-step explanation:

Rise/run is useful in this situation also is this iready?!

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