Answer:
-5
Step-by-step explanation:
The slope is given by
m= (y2-y1)/(x2-x1)
= (9 - -1)/ ((2 - 4)
= (9+1)/(2-4)
= 10/-2
= -5
X = 1 hr lessons and y = 1/2 hr lessons
x + y = 35......y = 35 - x
40x + 25y = 1115
40x + 25(35 - x) = 1115
40x + 875 - 25x = 1115
40x - 25x = 1115 - 875
15x = 240
x = 240/15
x = 16 <=== there are 16 one-hr lessons
and 19 half-hr lessons
Answer:
45.89
Step-by-step explanation:
This is what is the answer
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No it doesn’t make any of them true
