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mixas84 [53]
3 years ago
13

Solve the equation for all values of x by completing the square

Mathematics
2 answers:
amid [387]3 years ago
4 0
X=5
X=7
Hope that it is right
quester [9]3 years ago
3 0

Answer:

x=5  x= -7

Step-by-step explanation:

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4 years ago
A certain type of brass contains 65% copper. How many pounds of copper are contained in 120 pounds of brass?
enyata [817]

The number of pounds of copper in 120 pounds of brass is = 78 pounds of copper

<h3>Calculation of number of pounds of copper</h3>

The percentage of copper in the brass = 65%

Therefore the quantity of copper in the brass = 65/100= 0.65 pounds

This means that 1 pound brass contains = 0.65 pounds of copper

The quantity of copper in 120 pounds of brass = 120 * 0.65

                                                                             = 78 pounds of copper.

Learn more about copper here:

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kupik [55]
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4 years ago
Use substitution to solve the system of equation<br><br> x=y+6<br> x+y=10
DiKsa [7]
X = 8
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6 0
3 years ago
Read 2 more answers
Evaluate 3 – 5 · 2 + 8 ÷ 4 – 2 using the correct order of operations.
soldi70 [24.7K]
The answer is
C) -7

Multiply -5 by 2
Divide 8 by 4 :
3-10+2-2
Subtract 10 from 3 :
-7+2-2
Add -7 and 2 :
-5 - 2
Subtract 2 from -5:
-7

3 0
3 years ago
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