About $5.26 will be deducted from $50
So he will get $44.74
        
             
        
        
        
Answer :
x = 53.85
Step by step explanation:
If 78% of x (some numbers) is equal to 42, then we must set this as an equation to find it.
1) Rewriting 78% as a fraction and considering that when we say 78% of some number (x) we mean a product.
78% = 78/100 ➡️ 78/100x = 42
2) Then we can go on :
100 * 78/100x = 42 * 100
78x = 4200
78x/78 = 4200/78 ➡️ x = 53.85
3) Alternatively, simply dividing 42 by 0.78 (78%) would come to the same result :
42/0.78 = 53.85
        
                    
             
        
        
        
We can easily work out the meter reading in October. It comes out to be 32347 + 972. So the reading in October must be around 33319.
SO the answer to second question is really easy to figure out too. As we know that one unit costs 14 p we can simply multiply the cost with the number of units consumed. 
So for 972 units if we multiply by 14 we get the cost to be around somewhere 13608 p.
 
        
             
        
        
        
Answer:
Numerator = 2(b^2+a^2)    or equivalently 2b^2+2a^2
Denominator = (b+a)^2*(b-a), or equivalently b^3+ab^2-a^2b0-a^3
Step-by-step explanation:
Let
S = 2b/(b+a)^2 + 2a/(b^2-a^2)   factor denominator
= 2b/(b+a)^2 + 2a/((b+a)(b-a))     factor denominators
= 1/(b+a) ( 2b/(b+a) + 2a/(b-a))    find common denominator
= 1/(b+a) ((2b*(b-a) + 2a*(b+a))/((b+a)(b-a))   expand
= 1/(b+a)(2b^2-2ab+2ab+2a^2)/((b+a)(b-a))  simplify & factor
= 2/(b+a)(b^2+a^2)/((b+a)(b-a))  simplify & rearrange
= 2(b^2+a^2)/((b+a)^2(b-a))
Numerator = 2(b^2+a^2)    or equivalently 2b^2+2a^2
Denominator = (b+a)^2*(b-a), or equivalently b^3+ab^2-a^2b0-a^3
 
        
             
        
        
        
Answer:
An equilateral triangle has three lines of symmetr
Step-by-step explanation:
letter d