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Pavel [41]
3 years ago
11

Graph each equation using a table. 5x + 4y = 20

Mathematics
1 answer:
-Dominant- [34]3 years ago
5 0

Answer:

Brainliest Please!!

Step-by-step explanation:

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Translate into a variable expression.<br> fifteen more than one-half of the square of z
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Answer:

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3 years ago
Please help me !!!!!!!!!!!!!!!!
Nutka1998 [239]

Answer: x=-10, y=13

Step-by-step explanation:

-3x+2y=56\\-5x-2y=24

+2y-2y = 0, eliminating y is much easier. So -3x-5x = -8x and 56+24 = 80

-8x=80\\x=-10

Substitute x in any equations but only 1 equation (Don't substitute in both equations.)

For me, I'd substitute x in -3x+2y=50

-3(-10)+2y=56\\30+2y=56\\2y=56-30\\2y=26\\y=13

So the answer is x = -10, y = 13

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Raj was friends with his waitress so he left her a 90 percent tip
horrorfan [7]

Answer:

It would be C. I'm pretty sure $24.79 I'm glad to help

Step-by-step explanation:

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3 years ago
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jasenka [17]
480 or 500 depending on if you want to round to the nearest 10 or the nearest 100
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3 years ago
The difference of twice a number and 3 is -21 translated
Westkost [7]

Answer:

2x-3=-21.

2x=-21+3.

2x=-18.

x=-18/2.

x= -9.

7 0
3 years ago
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