3(4x-5)+4(2x+6)
Distribute.
12x-15+8x+24
12x+8x= 20x
24-15= 9
20x+9 <---- simplified expression
I hope this helps!
~kaikers
        
                    
             
        
        
        
Answer:
35 quarters
Step-by-step explanation:
This situation has two unknowns - the total number of dimes and the total number of quarters. Because we have two unknowns, we will write a system of equations with two equations using the two unknowns. 
 is an equation representing the total number of coins is an equation representing the total number of coins
 is an equation representing the total value in money based on the number of coin. 0.10 and 0.25 come from the value of a dime and quarter individually. is an equation representing the total value in money based on the number of coin. 0.10 and 0.25 come from the value of a dime and quarter individually.
We write the first equation in terms of q by subtracting it across the equal sign to get  . We now substitute this for d in the second equation.
. We now substitute this for d in the second equation.

After simplifying, we subtract 6 across and divide by the coefficient of q.

We now know of the 60 coins that 35 are quarters. To find the total value of the quarters, we multiply 35 by 0.25 and find 8.75.
 
        
             
        
        
        
When simplifying this, we would have to take this little by little in serious steps and not only this, but to also take notice of the use of <u>
pemdas</u>
 and to make sure that we take each step carefully.
We first would <u>
</u>
<u>
(first)</u>
 simplify the following:
 
 
        
        
        
Answer:
Step-by-step explanation:
Givens
- Triangle
- Base = 11  inches
- Height = 12 inches
Formula
A = Base * height / 2
Solution
- Area = 11 * 12/2
- Area = 132 /2
- Area = 66 square inches.
 
        
                    
             
        
        
        
Answer: 9.34 x 10^3
Hope this helps