Answer:
70 dolls
Step-by-step explanation:
Hello!
The ratio is 5:2, which are division of  a whole. They can be represented as 5x and 2x.
Jacky has 5x dolls, and Peter has 2x dolls. They were equal after subtracting 15 dolls from 5x and adding them to 2x.
Equation:
Solve:
- 5x - 15 = 2x + 15
 - 5x - 30 = 2x
 - 5x = 2x + 30
 - 3x = 30
 - x = 10
 
So Jacky has 5(10) dolls, or 50 dolls, and Peter has 2(10) or 20 dolls.
The total sum is 70 dolls.
 
        
                    
             
        
        
        
Answer:
20.
$18.40.
Step-by-step explanation:
The mean number of people = (12+19+17+26+26)/5
= 100/5
= 20.
Karmin's original hourly rate = 480/30
= $16 per hour.
With a 15% rise it is 16 * 1.15
= $18.40 / hour.
 
        
             
        
        
        
I don’t think I just want points
        
             
        
        
        
Answer:
x=12!
Step-by-step explanation:
 
        
                    
             
        
        
        
<h3 /><h3>

</h3>
Equation for Perimeter of a rectangle: Perimeter = 2W + 2L
 
<h3>Defining the variables, let</h3>
 
<h3>Width = x</h3><h3>Length = 2x+3 (3 more than twice the width)</h3>
 
<h3>Plugging everything into the equation</h3>
 
<h3>30= 2(x) + 2(2x+3) using the distributive property,</h3>
<h3>30=2x+4x+6 combining like terms</h3>
<h3>30=6x+6 subtracting 6 from both sides,</h3>
<h3>24=6x divide both sides by 6</h3>
<h3>4=x This means that the width is 4 m.</h3>
<h3>To get the length, use the expression L=2x+3 and plug in x = 4 that was already solved for</h3>
<h3>L=2(4)+3</h3>
<h3>L=8+3 = 11 m</h3>
 
<h3>So the dimensions of the rectangle are width is 4 m and length is 11 m.</h3>