5x and 7y. Keep up the good work
        
             
        
        
        
Answer: 9.7 seconds
Step-by-step explanation:

 
        
             
        
        
        
Answer:
8
Step-by-step explanation:
Using the pythagorean theorem (Assuming the house's walls are perpindicular to the ground):
a^2+b^2=c^2
we can find that 3=a and 29=c
3^2+b^2=29^2
9+b^2=841
b^2=832
b=
b=
b=8
That is the height that the ladder will reach
 
        
             
        
        
        
Answer:
a. x=5
Step-by-step explanation:
The Fraction is
10/x=2
The unknown from the fraction is x
We need to find the value of the unknown
10/x=2
Cross product
We have,
10=2x
Divide both sides by 2
10/2=2x/2
5=x
x=5
Answer is a. x=5
Check
10/5=2
 
        
             
        
        
        
Answer:
c) 62.
Step-by-step explanation:
Let x represent number of customers came in on the fifth day.
We have been given that the mean number of customers for those four days is 52. So total number of customers on 4 days would be 4 times 52 that is 208 customers.
We know that mean of a data set is equal to sum of all data points divided by number of data points.
Total number of customers on 5 days would be  and total number of days is 5.
 and total number of days is 5.
Since we need a mean of 54, so we can set mean of 5 days equal to 54 as:

Multiply both sides by 5:




Therefore, 62 customers must come in on the fifth day to make the five-day mean 54 and option 'c' is the correct choice.