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Anna35 [415]
4 years ago
8

2x-y=0

Mathematics
1 answer:
Yuki888 [10]4 years ago
3 0
If you mult.  x + y = 1 by -5, you should get -5x - 5y = -5.  In the example shown, the author wrote                               -5x + 5y = -5 (this is incorrect)
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What is the sum of the arithmetic series below?
Irina-Kira [14]
Hello : 
the common ratio is r = -95-(-100)=5
the general terme is : un= u1+(n-1)r
un = -100 +(n-1)(5)
un =-100 +5n-5
un = 5n-105
The last term is : 100
un =100
5n-105 = 100
5n =205
n = 41 (Number of terms)
The last term is : u 41
<span>the sum is : S= (41/2)(-100+100)=0</span>
5 0
3 years ago
The yearbook staff receive 75 submissions for yearbook articles. Paul will accept 2/5
antiseptic1488 [7]

Answer:

2/5 of 75 is 30 thats all i have for because i am haveing trouble with the same question

Step-by-step explanation:

7 0
3 years ago
Pretty easy problem compared to most ive seen this morning
Kipish [7]

Answer:

The answer is -2

Step-by-step explanation:

slope = y2-y1/x2-x1

= -6-6/3-(-3)

= -12/3+3

= -12/6

= -2

8 0
3 years ago
What’s the value of x in this equation???? Thank u!
andre [41]

Answer:

x = 9

Step-by-step explanation:

The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.

50° is an exterior angle of the triangle, thus

38 + 4x - 24 = 50 , that is

14 + 4x = 50 ( subtract 14 from both sides )

4x = 36 ( divide both sides by 4 )

x = 9

7 0
3 years ago
Read 2 more answers
...I don’t understand umm can anyone help me smh-
Anna007 [38]
Answer:

{Rounded to the nearest Hundredths place}

1) Mercury= 170.55
2) Venus= 277.86
3) Earth= 389.62
4) Mars= 401.29

Explanation:

Mercury: 3.3022 x 10^19= 170.549894825 which rounds to 170.55

Earth: 5.9722 x 10^24= 389.618945662 which rounds to 389.62

Venus: 4.8675 x 10^21= 277.855972801 which rounds to 277.86

Mars: 6.4185 x 10^23= 401.287714067 which rounds to 401.29

•So smallest to largest would be• 170.55, 277.86, 389.62, and 401.29

[I hope this helps][Sorry if it doesn’t make sense]

3 0
3 years ago
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