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Elena-2011 [213]
3 years ago
12

What must be done to the expression x•6.78 to make it equal x?

Mathematics
1 answer:
Mnenie [13.5K]3 years ago
8 0

The answer should be D, divide by 6.78.

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F
Vilka [71]
I think it should be F=45
3 0
3 years ago
Multiply (3x – 5y)(2x + 3y)
Ghella [55]

Answer:

6x² - xy - 15y²

Step-by-step explanation:

To multiply these two binomials together, we can use FOIL. FOIL stands for:

First: Multiply the first terms of the binomials together.

Outer: Multiply the first term of the first binomial by the second term of the second binomial.

Inner: Multiply the second term of the first binomial by the first term of the second binomial.

Last: Multiply the second (last) terms of the two binomials together.

(3x - 5y)(2x + 3y) = (3x)(2x) + (3x)(3y) + (-5y)(2x) + (-5y)(3y)

= 6x² + 9xy - 10xy - 15y²

= 6x² - xy - 15y²

I hope you find my answer helpful.

8 0
3 years ago
HELPPPP ME PLEASE!!!!!
ehidna [41]

Answer:

10/3 ..don't trust I might be wrong

7 0
3 years ago
Solve for x: 3 over 3 x plus 1 over quantity x plus 4 equals 10 over 7x .
harina [27]
  3              1                   10
------ + --------------- =  ----------
 3x          x +4                 7x

      1            1                 10
    ------ + ------------ =  ----------
      x          x +4               7x


       x + 4 + x           10               
   ------------------ =  ----------
       x(x +4)             7x

       2x + 4                10               
 ------------------ =  ----------
       x(x +4)                7x

    7x(2x + 4) = 10x(x+4)
  
  14x^2 + 28x = 10x^2 + 40x

  4x^2  - 12x = 0
  4x(x - 3) = 0
  4x = 0
    x = 0
 x - 3 = 0
      x = 3

answer x = 0 and x = 3




8 0
3 years ago
Read 2 more answers
PLEASE HELP ASAP I WILL GIVE BRAINLIEST AND 100pts!!!!!!!!!!!!!!!!!!!!!!!!!!
tigry1 [53]

Answer:

will this help?

4 0
2 years ago
Read 2 more answers
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