3 years ago

Solve the system of linear equations by substitution. Check your solution.

Mathematics

1 answer:

Drupady [299]3 years ago

6 0

Answer:

(x,y)= (- 2, - 1)

Step-by-step explanation:

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3 years ago

What is the value of X? What is the value of Y? What is the value of Z?

baherus [9]

Answer:

The answer is

$x = 12 \\ y = 20 \\ z = 15$

Step-by-step explanation:

By using Pythagoras low

Then we can find that

${y}^{2} = {x}^{2} + {16}^{2} \\ {z}^{2} = {x}^{2} + {9}^{2} \\ {y}^{2} + {z}^{2} = {25}^{2} \\ then \\ {x}^{2} + {9}^{2} + {x}^{2} + {16}^{2} = {25}^{2} \\ 2 {x}^{2} = 288 \\ x = 12 \\ By \: substituting \: x \: into \: the \: previous \: equations \\ then \: \\ y = 20 \\ z = 15$

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3 years ago

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Help pls ? find the UP

iren [92.7K]

Answer:

UP=78

Step-by-step explanation:

TP=TU+UP

103=2x+3+6x+12

103=8x+15

103-15=8x

8x=88

x=11

UP=6x+12

UP=6(11)+12

UP=66+12

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3 years ago

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