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Yuki888 [10]
3 years ago
13

Vhat is the solution to the following system? 3x+10y- 12z = 40 X-5y = 0 X-4z = 0

Mathematics
1 answer:
Nitella [24]3 years ago
3 0

Answer:x=20

y=4

z=5

Step-by-step explanation:the third equaiton times by 3 ,so we can get 3x-12=0

and along with the first equation we can get y=4

and the second equation x=20

the third equation z=5

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What greatest three digit number whose hundreds is two less than its ones digit
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Answer:

799

Step-by-step explanation:

Let x = the hundreds digit

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x = y-2

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The largest x can be is 7 if y is a single digit

x is 7 and y is 9

We can pick the tens digit.  Make it as big as possible to make out number as large as possible

799

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Anon25 [30]

Answer:

AM=26

Step-by-step explanation:

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x+20 = 5x-4

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Then I carried the x to the other side by subtracting -x (or if it helps, imagine an invisible one next to the x so it would be -1x) on both sides.

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