8x – 2y + 3(x + y) ......

Mathematics

1 answer:

AlexFokin [52]3 years ago

6 0

Answer: 11x + y

Step-by-step explanation:

8x - 2y + 3(x + y)

=> 8x - 2y + 3x + 3y

=> 11x + y

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Tami bought a jacket that normally costs $84 at 15% markdown. She then paid 7% sales tax.

Alecsey [184]

15%=.15
84 x .15=$12.60 discount
subtract from $84
84-12.60= $71.40
multiply by .07 sales tax
71.40 x .07= 4.998 rounded off to $5.00
total cost $71.40 + $5.00=
$76.40 is what Tami paid for the coat

hope this helps

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4 years ago

Need a little help help here..

Blizzard [7]

Wat do u need I can help u with anything u need

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4 years ago

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~ P L E A S E ~ H E L P ~ M E ~ O U T ~

DerKrebs [107]

Formula for area of a circle: Pi * R^2.
Radius = diameter/2
Radius = 16m/2
Radius = 8m

Formula and equation:
Pi * (8)^2
= Pi * 64m2
= 201.0 m2.
So, in conclusion, the answer to this question is C)64 * Pi * m^2.

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3 years ago

Help plzzzzz hurry

V125BC [204]

Answer:

-9, -5, -4.1, -4

$\\q\leq -4$

Step-by-step explanation:

I think what you're missing here is that there is a negative sign in front of the q. This means that whatever number you put in for q will be multiplied by negative 1. Positive numbers will become negative, and negative numbers will become positive.

If you substitute 9 for q you will get $-9\geq 4$ , which is clearly not true, because -9 is way less than 4.