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Pachacha [2.7K]
3 years ago
11

What are the solutions of 4x^2-4x^2=8

Mathematics
1 answer:
In-s [12.5K]3 years ago
8 0

Answer:

0

Step-by-step explanation:

4x^2 = 8x

1.8x-8x=8

2.0x=8

3.x=8÷0

4.x=0

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A contractor combined x tons of a gravel mixture that contained 10 percent gravel G, by weight, with y tons of a mixture that co
White raven [17]

Answer:

The value of x would be \frac{3}{5}y or \frac{3}{8}z

Step-by-step explanation:

Given,

x tons of 10% gravel G mixture is mixed with y ton of 2% gravel G to obtain  5% gravel mixture,

Thus, gravel G in x ton + gravel in y ton = gravel G in the resultant mixture,          

⇒ 0.1x + 0.02y = 0.05(x+y),

0.1x - 0.05x = 0.05y - 0.02y

0.05x = 0.03y

\implies x = \frac{0.03}{0.05}y=\frac{3}{5}y----(1)

Now, resultant mixture is z ton,

i.e. z=x+y

\implies y = z - x

From equation (1),

x=\frac{3}{5}(z-x) = \frac{3}{5}z-\frac{3}{5}x

x+\frac{3}{5}x=\frac{3}{5}z

\frac{8}{5}x=\frac{3}{5}z

x=\frac{3}{8}z

3 0
3 years ago
Need Help help me plz ;(
omeli [17]
So in order to solve you must first combine like terms.
-2y + 2y + 3 = 3
0 + 3 = 3
Subtract 3.
0 = 0
The answer is infinate solution because both numbers are the same.
I hope this helps love! :)
7 0
3 years ago
The answer to this question
kirill115 [55]

Answer:

4m

Step-by-step explanation:

m+m+m+m

There is an implied 1 in front of each term

1m+1m+1m+1m

Factor out the m

(1+1+1+1)m

4m

6 0
3 years ago
10, 12, c, ...
Crank

Answer:

A

Step-by-step explanation:

6 0
3 years ago
How to find angle of x in angles
rodikova [14]

Answer:

By using the one the straight line degrees if your doing it for a circle or 180 degrees for a triangle.

6 0
3 years ago
Read 2 more answers
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