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3 years ago

Solving Equations 3k+10=2k-21

Mathematics

1 answer:

Nikolay [14]3 years ago

6 0

3k+10=2k-21

move 2k to the other side

sign changes from +2k to -2k

3k-2k+10=2k-2k-21( combine like terms)

3k-2k+10= -21

k+10=-21

move +10 to the other side

k+10-10= -21-10

k= -21-10

answer:

k= -31

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Solve this inequality : 5x+7x<36

Lera25 [3.4K]

Answer:

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Step-by-step explanation:

5x+7x<36

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Divide both sides by 12

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3 years ago

find rodrigos percent increase or decrease in sales each week. week 1, is 17 wwek 2, is 25 week 3, is 18 and week 4, is 27. his

sveticcg [70]

Answer: The multiplication factor of increase should be inverse of the multiplication factor of decrease.

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3 years ago

Cindy shoots a bottle rocket straight up into the air such that its height h, in feet, at time t, in seconds, is given by the fu

dezoksy [38]

Answer:

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Step-by-step explanation:

The height of the rocket straight up into the air is given by :

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3 years ago

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Arturiano [62]

I: 2x+y=5
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start by eliminating y

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II: 3x+2y=4

add both equations together

-2*I+II: -4x-2y+3x+2y=-10+4
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x=6

insert x=6 into I:
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so the solution is x=6, y=-7

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3 years ago

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Keywords

system; linear equations; graphing; solution

we have

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