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MArishka [77]
3 years ago
5

Can someone please help me with this! I'll do my best to give a lot of points for it!

Mathematics
1 answer:
Triss [41]3 years ago
8 0
1. By combining like terms
2. Same variable = same term, so you can combine them
3. Because 2y - y = 1y , and 1y is the same as y because a y is one y (obviously)
4. 1/2 + 1/2 = 1. A half an x and a half an x makes one whole x, therefore, x
5. No. You solve them like you would a normal equation with like terms. So it would be 3z^2

Hopefully these are right, I’m a bit rusty!
6. 4x
7. 3y
8. y - 4.5
9. 3.5x + 2
10. 4y + 2
11. 7x
12. 2.2w - 0.5
13. 23b + 6.6
14. 3.75x + 1.5
15. 0.8x + 2.1
Good luck, I hope this helped
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Select the sum of the series. ∑4k=1k2
SashulF [63]
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7 0
3 years ago
Explain how you got the answer please
Alisiya [41]
The answer is C.
You want:

10 < a < 14  (greater or equal)
The difference between 10 and 12 is 2.
The difference between 12 and 14 is 2.
Therefore the absolute value allows you to express that the difference between a and 12 cannot be greater than 2 (either going up to a max of 14 or going down to a minimum of 10).

5 0
3 years ago
Can i have help on this q plz
lukranit [14]

Answer:

No, they will need an additional £34 to stay the planned 10 nights.  

Step-by-step explanation:

Attached screenshot of a spreadsheet.

The cost for 10 nights for the 2 people is £100.

The tent site rental (over 10m^2) for 10 nights is £150.

Savings for the two over the 9 weeks is £216.

They will need an additional £34 to camp as planned.  

I suggest fibbing about the extra 0.5m^2 needed for the tent site.  That will reduce the bill by £30, so they are only £4 short.  Time to make a couple of friends.

3 0
2 years ago
What is the value of y in the solution to the system of equations? x + y = 1 2x – 3y = –30
Sauron [17]
X + y = 1.....multiply by -2
2x - 3y = -30
-----------------
-2x - 2y = -2 (result of multiplying by -2)
2x - 3y = -30
----------------add
-5y = -32
y = -32/-5
y = 32/5 or 6.4 <===

7 0
3 years ago
Read 2 more answers
Write an equation that represents the line passing through the point -3, -1 with a slope of 4
Alex17521 [72]

Answer:

Equation that represents the line passing through the point -3, -1 with a slope of 4 is

y= 4x+11

Step-by-step explanation:

Equation of line in point slope form is

y-y_1=m(x-x_1) -------(1)

Here

m=4 \ \ \ and \ \ \ (x_1, y_1) = (-3, -1)

Substituting values in equation (1)

y+1=4(x+3)\\ y= 4x+11

4 0
3 years ago
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