first you should try to find the closest multiple of 19 which you should multiply 19 by 5 and get 95. then subtract 97.75-95 which equals 2.75. 2.75 then needs to be divided by the cost per extra minute 0.07 so 2.75 divided by .07 which gets you 39. 39 minutes
Answer:
small: 6.25
large: 18.25
Step-by-step explanation:
Set the large boxes as x and the small boxes as y (The weight is the constant).
3x+5y=86
6x+2y=122
Now just solve the systems of equations using either substitution or elimination.
-6x-10y=-172 multiply the whole equation by -2 to eliminate
6x+2y=122, add the equations
-8y=-50
y= 6.25
Plug in y either equation:
3x+5(6.25)=86
3x=86-31.25
3x=54.75
x=18.25
Each small box weighs 6.25 kilograms, each large box weighs 18.25 kilograms, to check plug in the values to the other equation to see if they add up correctly.
Answer:
y-coordinate of midpoint of line segment joining the endpoints (0,0) and (0,15) is 7.5
Step-by-step explanation:
Given two end points of line segment that are (0,0) and (0,15). If we have to find the y-coordinate of midpoint of a vertical line segment then we apply mid point formula.
The Midpoint formula is used when one is need to find the exact center point between two given points.
The mid point M of line segment 
and 
can be calculated as
Mid point of line joining the end points (0,0) and (0,15) is
=M(0,7.5)
Hence, y-coordinate of midpoint of line segment joining the endpoints (0,0) and (0,15) is 7.5
