Answer:
equation 1 has no solution
Step-by-step explanation:
when you compare each of the equations, all the equations gives a correct answer with the exception of equation 1
 
        
             
        
        
        
Answer:
<u>The number is 67</u>
Step-by-step explanation:
<u>Equations</u>
Let's consider the number 83. The tens digit is 8 and the unit digit is 3. Note the tens digit's addition to the number is 80, and the unit's addition is 3. This means the tens digit adds 10 times its value, that is, 83 = 8*10 + 3.
Now, let's consider the number ab, where a is the tens digit, and b is the unit digit. It follows that
Number=10*a+b
The question gives us two conditions: 
1) The sum of a two-digits number is 13. 
2) The tens digit is 8 less than twice the units digit.
The first condition can be expressed as:
a + b = 13                     [1]
And the second condition can be written as:
a = 2b-8                      [2]
Replacing [2] into [1], we have:
2b-8 + b = 13
Operating:
3b = 13 + 8
3b = 21
Solving for b:
b = 21 / 3 = 7
Substituting into [2]:
a = 2*(7) - 8 = 6
Thus, the number is 67
 
        
             
        
        
        
3x2+4x=2
6+4x=2
-6 -6
4x=-4
4 4 
x=-1
        
             
        
        
        
Answer: i know this is way late, but it’s 48
Step-by-step explanation:
Since point A is the separation of BE, both sides of the separation are equivalent, the are congruent. Since AB=24, you add 24+24 to get 48.
(I also just answered this question on homework and got it right, this is just how I did it.)
 
        
             
        
        
        
Answer:
Area = 733 m² (to the nearest meter) 
Step-by-step explanation:
<u></u>
<u>Formulae</u>
- Circumference of a circle = 2 r r
- Area of a circle =   r² r²
       (where r is the radius of the circle)
<u>Find the radius</u>
circumference = 96 m
Using the circumference of a circle formula:
⇒  2 r = 96
r = 96 
⇒   r = 96 ÷ 2 = 48
r = 96 ÷ 2 = 48
⇒  r = 48 ÷  = 48/
 = 48/
<u>Find the area</u>
radius r = 48/
Using the area of a circle formula:
⇒  A =  r²
r² 
⇒  A =  (48/
(48/ )²
)²
⇒  A = 2304/
⇒  A = 733.3859778... 
⇒  A = 733 m² (to the nearest meter)