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Gala2k [10]
3 years ago
15

Which is the best estimate of x based on rounding the constants and coefficients in the equation to the nearest integer? 3.1x +

5.2 = 9.9
Mathematics
2 answers:
creativ13 [48]3 years ago
8 0
Answer:  x = \frac{5}{3} ;  or, write as:  "1\frac{2}{3}" ; 
                                                         
                                                            or; write as:  " 1.6667 " . 
________________________________________________________
Explanation:
________________________________________________________

Given:  " 3.1 x + 5.2 = 9.9 " ; 

Round the:  " 3.1 x "  to:  " 3x " ; 

Round the:  " 5.2 "   to:  " 5 " ; 

Round the:  " 9.9 " to:  " 10 " ; 
____________________________________
And rewrite the equation as:
_____________________________________

  →    "  3x + 5 = 10 "  ; 
_____________________________________
Subtract "5" from each side of the equation: 

3x + 5 – 5 = 10 – 5 ; 

to get:
___________________________________________________
→   3x = 5 ; 
___________________________________________________
Divide each side of the equation by "3" ;
       to isolate "x" on one side of the equation; & to solve for "x" ;  

3x / 3 = 5 / 3 ; 

x = \frac{5}{3} ;  or, write as:  "1\frac{2}{3}" ; 

or; write as:  " 1.666666666666....  " ;  →  round to:  "1.6667" . 
_____________________________________________________
Flauer [41]3 years ago
3 0
X would equal about 1.51 or 1.52!

Please, Mark Brainliest If You Can!
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3 years ago
−8x=<br> \,\,7-(7.2x+8.8)+x<br> 7−(7.2x+8.8)+x
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Step-by-step explanation:

7 0
3 years ago
A, B &amp; C lie on a straight line.
bazaltina [42]

Answer:

x = 136°

Step-by-step explanation:

We can use a theorem to help us.

<em>Theorem: </em>

<em>The measure of an exterior angle of a triangle is equal to the sum of the measures of the remote interior angles.</em>

For exterior angle x, the remote interior angles are z and <CBD.

From the theorem, we get this equation.

x = z + m<CBD

We know z = 52°.

We need to find m<CBD.

Angles CBD and y are a linear pair. They are supplementary, so the sum of their measures is 180°. We are given y = 96°.

m<CBD + y = 180°

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m<CBD = 84°

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x = 136°

3 0
3 years ago
Read 2 more answers
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