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3 years ago

−3(2+4k)+7(2k−1) eqivalent expression

Mathematics

1 answer:

Alex17521 [72]3 years ago

6 0

Answer:

$\large\boxed{-3(2+4k)+7(2k-1)=2k-13}$

Step-by-step explanation:

$-3(2+4k)+7(2k-1)\qquad\text{use the distributive property}\ a(b+c)=ab+ac\\\\=(-3)(2)+(-3)(4k)+(7)(2k)+(7)(-1)\\\\=-6-12k+14k-7\qquad\text{combine like terms}\\\\=(-12k+14k)+(-6-7)\\\\=2k-13$

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Aleks04 [339]

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3 years ago

An airplane flies at a rate of 356 km/h. the plane travels a total distance of 1424 km. (use distance = rate * time for your equ

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3 years ago

Can somebody prove this mathmatical induction?

Flauer [41]

Answer:

See explanation

Step-by-step explanation:

1 step:

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2 step:

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3 step:

Check for n=k+1 whether the statement

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Start with the left side:

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Substitute it into the $\ast$

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3 years ago

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Kobotan [32]

Answer:

2,500 German chocolate cake boxes.

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Step-by-step explanation:

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Solving the linear system above:

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2,500 German chocolate cake boxes and 1,500 Swiss chocolate cake boxes can be made each day.

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3 years ago

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