Question 1187052
ordered pair 1 is (10, 200)
ordered pair 2 is (9, 250)
the slope is -50
point slope formula is y-y1=m (x-x1) m slope an (x1, y1) point
y-250= -50 (x-9)
y=-50x+700
so the price is 7.50 the sales will be 325 units per week
This also can be looked at by noticing the price drops 1.5 units and each unit affects sales 50. That means from 9 to 7.5 will increase sales 75 units to 325.
{{{graph(300,300,-10,12,-50,700,-50x+700,200,250,325)}}}
-
x@4%
1200-x@5.9%
interest is 0.04x+0.059(1200-x)=0.04x+70.8-0.059x=64.15
so -0.019x=-6.65
x=350 GH at 4% (14 GH)
1200-x=850 GH @ .059=50.15
They add to 64.15