Multiply .03 by 42
.03×42=1.26
1.26kg + 42kg= 43.26
Answer: 43.26kg 
        
             
        
        
        
Step-by-step explanation:
∫₀³⁰ (r/V C₀ e^(-rt/V)) dt
If u = -rt/V, then du = -r/V dt.
∫ -C₀ e^u du
-C₀ ∫ e^u du
-C₀ e^u + C
-C₀ e^(-rt/V) + C
Evaluate between t=0 and t=30.
-C₀ e^(-30r/V) − -C₀ e^(-0r/V)
-C₀ e^(-30r/V) + C₀
C₀ (-e^(-30r/V) + 1)
I got the same answer.  Try changing the lowercase v to an uppercase V.
 
        
             
        
        
        
If lane's are span is 61 inches. his height is 1/4 foot long than his arm span. his height is <span>5 ft 3 inches </span> 
        
             
        
        
        
Answer:
The change of concentration surely made the difference since the last drink contained more juice with respect to the water
Step-by-step explanation:
The concentration of a drink
We can know how much of a certain ingredient there is with respect to the entire mix. This is known as the concentration and is commonly expressed in percentage %
Sylvia and her friends made a drink with 6 quarts of pineapple juice in 4 quarts of sparkling water. The total quantity of water is 10 quarts, so the concentration of pineapple juice is

The next week, their drink consisted of 5 quarts of pineapple juice and 3 quarts of sparkling water, so the new concentration is

The change of concentration surely made the difference since the last drink contained more juice with respect to the water
 
        
             
        
        
        
Answer:
She has 225 dollars
Step-by-step explanation:
75% of her $300
Change the percent to decimal form
.75 * 300
225
She has 225 dollars