Answer:
1, 1/2, 1 1/2
Step-by-step explanation:
Question 1
20 divided by 18 is 1.1
So the answer is closest to 1
Question 2
9 divided by 20 is 0.45
So the answer is closest to 1/2
Question 3
7 divided by 5 is 1.4
So the answer is closest to 1 1/2
Hope this helps!
 
        
             
        
        
        
Answer:
The amount of increase per  hour by $1.
  hour by $1.
Step-by-step explanation:
Julian charges $10 for every  hour he walks a dog.
 hour he walks a dog.
He increases his fee by 10%
Now we have to find 10% of $10
Amount increased = 
So the amount increased by $1.
The amount of increase per  hour by $1.
  hour by $1.
 
        
             
        
        
        
We can't eliminate as is so we have to change something up there in the equations to get either the x values the same number but opposite signs, or the y values the same number but opposite signs.  I chose to change the y values to the same number but different signs. In the first equation y is -3y and in the second one, y is -8y. The LCM of both of those numbers is 24, so we will multiply the first equation by an 8 (8*3=24) and the second equation by 3 (3*8=24) but since they are both negative right now, one of those multiplications has to involve a negative because - * - = +. Set it up like this:
8(-10x - 3y = -18)
-3(-7x - 8y = 11)
Multiply both of those all the way through to get new equations:
-80x - 24y = -144
 21x  +24y = -33
Now the y's cancel each other out leaving only the x's: 
-59x = -177 and x = 3.  Now plug that 3 into either one of the original equations to find the y value.  Either equation will work; you'll get the same answer using either one. Promise. -7(3) - 8y = 11 gives a y value of -4.  so your solution is (3, -4) or B above.
        
                    
             
        
        
        
This is a linear relationship. The slope-intercept form of the linear equation is:

Where, 
- m is the rate of change (positive if increasing rate and negative if decreasing rate)
- c is the y intercept, or the initial value
<u><em>Rate of change is 2.5 quarts per minute (it is decreasing so m is -2.5)</em></u>
<u><em>Initial value is 50 quarts, so c is 50.</em></u>
Plugging in the values we get  .
.
Changing variables to w instead of y and t instead of x, gives us,
 . Where w is warts of water left in the tub and t is the time in minutes.
. Where w is warts of water left in the tub and t is the time in minutes.
There is no viable solution when t=30 because at t=20, w=0 ( ). It means after 20 minutes, there is no water left. So t=30 minutes doesn't make sense.
). It means after 20 minutes, there is no water left. So t=30 minutes doesn't make sense.
ANSWER:
Modelling equation: 
When  , there is no VIABLE solution
, there is no VIABLE solution
 
        
                    
             
        
        
        
Answer:
A zero slope means there is no change in the y -coordinates as the x -coordinates change, so this is a horizontal line.
Step-by-step explanation:
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