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11Alexandr11 [23.1K]
2 years ago
7

I’m stuck and I would really like your help.

Mathematics
2 answers:
Alekssandra [29.7K]2 years ago
8 0

Answer:

x= 12

Step-by-step explanation:

2x-20=40-3x  multiply both sides of the equation by 5

2x+3x= 40+20 move the terms

5x= 40+20 collect like terms

5x = 60 add the numbers

5x= 60 divide both sides by 5

x=12

Neporo4naja [7]2 years ago
6 0

Answer:

Answer: 1/12

Step-by-step explanation:

2/5x-4=8-3/5x.

We want to tank x out of the denominator by multiplying x on both sides.

2/5-4x=8x-3/5

Now we simplify

-12x=-1

x=1/12

Put x in the equation to check it

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Answer:

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Step-by-step explanation:

We know that the coordinates of a mid-point C(e,f) of a line segment AB with vertices A(a,b) and B(c,d) is given by:

e=a+c/2,f=b+d/2

Here we have to find the mid-point of side EF.

E(-2,3) i.e. (a,b)=(2,3)

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Hence, the coordinate of midpoint of EF is:

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e=.5, f=4.5

SO, the mid-point would be (-0.5,4.5)

 

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Answer:

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Step-by-step explanation:

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<h3>Answer: C) nonmetal</h3>

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Side note: Metalloids are a collection of elements where they share properties of metals and nonmetals (in a way they're on the fence).

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