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3 years ago

15

Justin is 2 years older than one third Marcella's age. Aimee is four years younger than 2 times Justin's age. Define a variable

and write an expression to represent Justin's age. Then find Justin's age and Aimee's age if Marcella is 63 years old.

1 answer:

Mademuasel [1]3 years ago

7 0

Apologies if it’s dark but here’s the work for your question. If you need an explanation, let me know.

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sergejj [24]

Hello from MrBillDoesMath!

Answer:

9

Discussion:

Solution 1:

Distance between two points (x1, y1), (x2,y2) is given by the formula

sqrt( (x1-x2)^2 + (y1-y2)^2). In our case this becomes

sqrt( (0-0)^2 + (12 -3)^2 ) =

sqrt( 9^2) =

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Solution 2:

Note points D and E both have x = 0 so segment DE is a vertical segment. The length is simply the difference of the y coordinates: 12- 3 = 9 as before.

Thank you,

MrB

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Answer:

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Step-by-step explanation:

(9r³ + 5r² + 11r) + (-2r³ + 9r - 8r²)

You can get rid of the parentheses since there is nothing to distribute.

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Combine like factors.

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3 years ago

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Answer:

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You serve a volleyball with a mass of 2 kg. The ball leaves your hand with a speed of 30 m/s. The ball has kinetic energy. Calcu

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Answer:

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