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2 years ago

1. Simplify: 50r2-20r - 10r A. -5r + 2 B. -5r-2 C. 5r2 +2

Mathematics

1 answer:

mel-nik [20]2 years ago

6 0

Answer:50r2−30r

Step-by-step explanation:

got it of the web.

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Answer:

$32

Step-by-step explanation:

Put 8 where d is, and do the arithmetic.

amount left = 72 -5·8 = 72 -40 = 32

Kira will have $32 left after paying for 5 tickets.

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jeka94

Assignment: $\bold{Solve \ \left(-2x^2\right)^3\cdot \:3x}$

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Answer: $\boxed{\bold{-24x^7}}$

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Explanation: $\downarrow\downarrow\downarrow$

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[ Step One ] Rewrite $\bold{\left(-2x^2\right)^3}$

$\bold{-2^3\left(x^2\right)^3}$

[ Step Two ] Rewrite Equation

$\bold{-2^3\cdot \:3x^6x}$

[ Step Three ] Apply Exponent Rule

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$\bold{-2^3\cdot \:3x^7}$

[ Step Four ] Refine

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2 years ago

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Paraphin [41]

Answer:

Divide the 1st equation by 2

a + 2c = 19

Divide the 2nd equation by 3

a + c = 13.5

Subtract the 1st equation and the 2nd equation

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Substituting back into the 2nd equation will give:

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Step-by-step explanation:

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