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3 years ago

2x+3y=12 and y=x+1.5 in substitution form

Mathematics

1 answer:

Sonbull [250]3 years ago

4 0

Answer:

(1.5, 3)

Step-by-step explanation:

Given the 2 equations

2x + 3y = 12 → (1)

y = x + 1.5 → (2)

Substitute y = x + 1. 5 into (1)

2x + 3(x + 1.5) = 12 ← distribute and simplify left side

2x + 3x + 4.5 = 12

5x + 4.5 = 12 ( subtract 4.5 from both sides )

5x = 7.5 ( divide both sides by 5 )

x = 1.5

Substitute x = 1.5 into (2) for corresponding value of y

y = 1.5 + 1.5 = 3

Solution is (1.5, 3)

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Answer:

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Step-by-step explanation:

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3 years ago

10| x – 4| - 3 > 47

Andrew [12]

Answer:

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Step-by-step explanation:

$10|x-4|-3>47$

Add 3 to both sides.

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$x-4$

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$x-4+4$

Simplify.

$x$

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Add 4 to both sides.

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Simplify.

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Combine the intervals.

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3 years ago

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disa [49]

Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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Step-by-step explanation:

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3 years ago