Answer:
b= 5/4 or 1 1/4
Step-by-step explanation:
First I will make 1 3/4 into an improper fraction
1/2 + b = 7/4
Then I will make the fractions have common denominators
2/4 + b = 7/4
I subtract 2/4 from 7/4
b= 5/4
 
        
                    
             
        
        
        
Answer:
39;45
Step-by-step explanation:
students on the floor;total students 
 
        
                    
             
        
        
        
Answer:
<u> 105</u> students could prefer kiwi if there are 357 total students.
Step-by-step explanation:
Given:
The ratio of students who prefer pineapple to students who prefer kiwi is 12 to 5.
Now, to find number of students prefer kiwi if there are 357 total students.
Let the students prefer pineapple be 
And the students prefer kiwi be 
Total students = 357.
So, we set an equation to get the number of students who prefer kiwi.
According to question:


<em>Dividing both sides by 17 we get:</em>

<em>Thus, students prefer kiwi are:</em>


Therefore, 105 students could prefer kiwi if there are 357 total students.
 
        
             
        
        
        
Answer:
5/8 square feet
Step-by-step explanation:
 . Hope this helps!
. Hope this helps!
 
        
             
        
        
        
If f(X)= 7x +5/3 - x =6x +5/3
y= 6x +5/3 
6x= y-5/3
f^-1(y)=x=(y-5/3)/6
So we can write 
f(f^-1(y))= f((y-5/3)/6) = 6 (y-5/3)/6 +5/3= y-5/3+5/3= y
The same result can be obtained for f^-1(f(x))=x
If the function is f(x)= 7x +5/(3-x) then it is not invertible since it is not injective (pictures)