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kherson [118]
3 years ago
12

Explain whether rounding or compatible numbers gives a closer estimate for 48x123=5,904

Mathematics
1 answer:
tiny-mole [99]3 years ago
4 0
The answer is B hope this helped

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How can you get equation b from equation A. 3(x+2)=18 B. X+2=18
Rzqust [24]

Answer:

We start with the equation:

A: 3*(x + 2) = 18

And we want to construct equation B:

B: X + 2 = 18

where I suppose that X is different than x.

Because in both equations the right side is the same thing, then the left side also should be the same thing, this means that:

3*(x + 2) = X + 2

Now we can isolate the variable x.

(x + 2) = (X + 2)/3

x = (X + 2)/3 - 2

Then we need to replace x by  (X + 2)/3 - 2 in equation A, and we will get equation B.

Let's do it:

A: 3*(x + 2) = 18

Now we can replace x by =  (X + 2)/3 - 2

3*( (X + 2)/3 - 2 + 2) = 18

3*(  (X + 2)/3 ) = 18

3*(X + 2)/3 = 18

(X + 2) = 18

Which is equation B.

3 0
2 years ago
4. x^2+13x=-42
Mrrafil [7]
x^2+13x=-42\ \ \ |+42\\\\x^2+13x+42=0\\\\x^2+6x+7x+42=0\\\\x(x+6)+7(x+6)=0\\\\(x+6)(x+7)=0\iff x+6=0\ \vee\ x+7=0\\\\x=-6\ \vee\ x=-7

Anaswer: <span>a. x = -6 or x = -7</span>

8 0
3 years ago
2. Which example does NOT show the
skelet666 [1.2K]

Answer:

The answer is A....im pretty sure

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
PLEASE HELP on number 3
solmaris [256]

Answer16

Step-by-step explanation:

5 0
3 years ago
(v) V2x+13 y=0<br>√3x - √8y=0<br>solve by substitution method ​
iren [92.7K]

Answer:

I guess the answer is;

x=13,y=14.5

Step-by-step explanation:

5 0
3 years ago
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