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andreev551 [17]
3 years ago
5

Plzz help!!!!!!!I 'll give brain liest​

Mathematics
1 answer:
Basile [38]3 years ago
7 0

Answer:

Step-by-step explanation:

1. 3x2 + 5x - 4 + 6x2 - x + 7

= combining like terms

= 9x2 + 4x + 3

2. 2y2 - 3y + 6 + y2 - 5y - 1 + (-4) + 2y2 - 2y

= 5y2 - 10y + 1

3. 2x2y - 3xy2 + x2y - 4x2y - 2xy2

= - x2y - 5xy2

4. x2 - y2 + 2x2 - 3xy + 4y2 + 3y2 - 5xy - x2

= 2x2 - 8xy + 6y2

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5 trays with 90 ice cubes
myrzilka [38]

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450

Step-by-step explanation:

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3 years ago
Help, I’m in 6th grade I need help with this. I got the first one wrong and I can’t worth to lose the second part because it’s g
Andreas93 [3]

Answer:

Part 1: 4.5

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Step-by-step explanation:

1. 1.8 = 80% We need to understand this.

So we can do this then:

2. 1.8/8 = 80%/8

3. 0.225 = 1%

4. 0.225 * 20

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(this is part 1 btw)

<u>Part 2!</u>

20% since 100-80 is 20.

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3 0
2 years ago
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frutty [35]

Answer:

-50,25 is the answer

Step-by-step explanation:

........................

5 0
3 years ago
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I need help figuring out question 6!!
alexgriva [62]

A rational number between 5.3 and 5.5 would be 5.4, it is rational because rational numbers can be decimals.

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3 years ago
Last week, Tanya had $43 in her checking
rosijanka [135]

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She would have $1 left in her account.

Step-by-step explanation:

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