
<h2>
Explanation:</h2>
in this problem we have the following expression:

So here:

Let's convert them as improper fractions:

Rewriting our expression:

<h2>Learn more:</h2>
Simplify: brainly.com/question/10644722
#LearnWithBrainly
 
        
             
        
        
        
Answer:
128
Step-by-step explanation:
Hey There!
So the rule about interior angles of a trapezoid 
is that the angles that lie on the segments that are not parallel are supplements
so essentially what I'm saying is that angle R and angle U are supplementary angles so to find x we do 
180=15x+8+7x-4
step 1 combine like terms 
15+7=22
8-4=4
now we have 
180=22x+4
step 2 subtract 4 from each side
180-4=176
now we have 
176=22x
step 3 divide each side by 22
176/22=8
so x=8 
now we plug in 8 to 15x+8
8x15=120
120+8=128
so we can conclude that angle R = 128
 
        
             
        
        
        
Answer: 15 inches is the height of Keisha's fish tank.
Step-by-step explanation: Basically, multiply your length x width, which is 12 x 10. 12 x 10 = 120. 
Next, divide 1800 by 120.
1800 divided by 120 is 15.
So, 15 inches is the height of the fish tank.
 
        
             
        
        
        
840 centimeters ...there 100 centimeters in one meter
        
             
        
        
        
Answer:
B
Step-by-step explanation: