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slavikrds [6]
3 years ago
15

2x + 8y = 6-5x – 20y=-15​

Mathematics
1 answer:
pashok25 [27]3 years ago
6 0

Answer:

{x,y} = {1,1/2}

That is the answer

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Ashley, Milan, and Carlos sent a total of 131 text messages over their cell phones during the weekend. Carlos sent 7 times as ma
nordsb [41]

Answer:

Ashley= 15

Milan= 11

Carlos= 105

Step-by-step explanation:

Let, A, M and C denotes Ashley, Milan and Carlos respectively.

A+M+C= 131 (according to the question)

Here,

C= 7A

A= M+ 4

So, M= A - 4

Now,

A+M+C = 131

or, A+ A-4+ 7A = 131 (putting the values)

or, 9A - 4 = 131 (adding like terms i.e. A + A + 7A)

or, 9A = 131 + 4

or, 9A = 135

or, A = 135 / 9

So, A = 15

C= 7A = 7×15= 105

M= A-4 = 15 - 4 = 11

6 0
4 years ago
066
Liono4ka [1.6K]

Step-by-step explanation:

5 ppl 5 walls 52 mins *2

10 ppl 10 walls 104 mins *2

20 ppl 20 walls 208 mins

as I know

3 0
3 years ago
Can anybody answer this for range?
snow_lady [41]

Answer:

The answer is (2, 4)

Step-by-step explanation:

I hope this helps!

8 0
3 years ago
The geometic mean of 4 and 21
-Dominant- [34]

Answer:

12.5

Step-by-step explanation:

4+21=25

25/2=12.5

4 0
3 years ago
I’m confused can someone explain?
Novay_Z [31]

Answer:

It is 150 percent

Step-by-step explanation:

You can find this value by dividing the numerator by the denominator, summing this value to the integer part and multiplying the result by 100%, so:

1 1/2 in percent = (1 + 1/2) × 100% =

(1 + 0.5) × 100% = 1.5 × 100% = 150%

Hope this helps! Sorry if I'm wrong.

3 0
3 years ago
Read 2 more answers
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