Answer:
6.9
7.-5
8.-10
Step-by-step explanation:
Let's use a for number of days when he shot 50 shots and b for number of days when he shot 100 shots.
We have:
a + b = 20
We also know that he shot total of 1250 shots:
50a + 100 b = 1250
We have two equations. We can solve them for a and b. Let's rearange first equation for a:
a= 20 - b
We insert this into second equation:
50 * (20 - b ) + 100b = 1250
1000 - 50b + 100b = 1250
50b = 250
b = 5
a = 20 - 5
a = 15
Mark shot 100 shots on 5 days.
It isn't proportional because 3/4 is proportional to 9/16 not 9/15.
Answer:
(-1 1/2, 6)
Step-by-step explanation:
The mid point between A(-3,6) and B(0,6) represents the coordinates of point P, which is (x,y)
Hence,the coordinates, that is, AP: x = (-3 + 0)/2 = -3/2 = -1 1/2
also, BP: y = (6 + 6)/2 = 6
Therefore, the coordinates of point P = ( -1 1/2, 6)
Answer:
y=150+50x
Step-by-step explanation:
Given data
Repair= $150
weekly charge = $50
X=#of weeks and y=total cost.
Hence the expression in slope-intercept form is
y=150+50x
