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iragen [17]
3 years ago
9

12.5x+2.5y=5 find x and y

Mathematics
1 answer:
egoroff_w [7]3 years ago
5 0

Answer:

it is 5x + y - 2 =0

Step-by-step explanation:

I don't need to do this

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Write down the first 5 terms of n squared + n
Alex73 [517]

Answer:

2, 6, 12, 20, 30

Step-by-step explanation:

To find the first 5 terms substitute n = 1, 2, 3, 4, 5 into the expression

n = 1 → 1² + 1 = 1 + 1 = 2

n = 2 → 2² + 2 = 4 + 2 = 6

n = 3 → 3² + 3 = 9 + 3 = 12

n = 4 → 4² + 4 = 16 + 4 = 20

n = 5 → 5² + 5 = 25 + 5 = 30

4 0
4 years ago
Somebody help me with this lol,<br><br> 9x = 81 ?
Scrat [10]

Answer:

x = 9

Step-by-step explanation:

81/9=9

6 0
3 years ago
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A tile measures 10cm by 10cm. How many such tiles are required to cover a wall of size 4m and 2.5m?
irina [24]

Answer:

Step-by-step explanation:

[4m(2.5m)(100^2cm^2/m^2)]/10^2cm^2=1000 tiles

3 0
3 years ago
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2^5*5^2*(-6)^4<br> ___________<br> (-6)^2*2^3*5^2 simplify
gulaghasi [49]

Answer:

The answer is 144

Step-by-step explanation:

\frac{ {2}^{5}  \times  {5}^{2}  \times   { - 6}^{4} }{  {2}^{3}  \times  {5}^{2} \times  { - 6}^{2}  }

{2}^{2}  \times  {6}^{2}  =  \\ 4 \times 36 = 144

5 0
3 years ago
1 What is -5/6 divided by -1/3<br> A -5/18<br> B -5/2<br> С<br> 5/2<br> D<br> 5/18
Murljashka [212]
I think it might as while be C or sum
4 0
3 years ago
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