Answer:
Beatrice's age is 34
Step-by-step explanation:
Beatruce = B
Andrew = B+2
Chris= B-3
B+(B+2) +(B-3 )= 67-B
3B-1 = 67-B
2B -1 = 67
2B= 68
B = 34
Beatrice is 34
Andrew is 36   (34+2)
Chris is 31 (34-3)
36+31 = 67
 
        
             
        
        
        
Answer:

Step-by-step explanation:
in the equation given these are the values:
a=1   b= -5     c= -7
if we plug this in the quadratic formula 
this is simplified to 
hope this helped
 
        
             
        
        
        
Amount = 3,700 * (1.0475)^9
<span><span>Amount = 3,700 * 1.5184003135
</span>
</span><span>Amount =
</span><span><span><span>5,618.08
</span>
</span>
</span>
        
             
        
        
        
Answer:the answer is A
Step-by-step explanation:
I know because i took the quiz and got it right
 
        
             
        
        
        
Answer:

The solution of the system can be given as (5,-8).
Step-by-step explanation:
Given system of equations:


To solve the given system of equations:
Solution:
We will use substitution to solve the given system.
We will substitute the  values in terms of
 values in terms of  from the equation
 from the equation  into the other equation to solve for
 into the other equation to solve for 
Substituting  into
 into  .
.
We have:

<em>Using distribution.</em>

<em>Combining like terms.</em>

Adding 6 both sides.


Dividing both sides by 3.

∴ 
<em>Plugging in  into
 into  .</em>
.</em>
We have,

∴ 
The solution of the system can be given as (5,-8).