We are given with two coordinates (10, 7, 20) and (5, 3, -2) Which can be used to create a linear equation represented by vectors <x, y, z> = <x0, y0, z0> + t<mx, my, mz> We can get the slope by <mx, my, mz> = <10, 7, 20> - <5, 3, -2> = <5, 4, 22>
<x, y, z> = <x0, y0, z0> + t<5, 4, 22> At z = 0, and using the coordinates of either of the two points, the coordinates o the shadow of the point can be determined.
The initial equation is 25x+150=650. Since she already has 150, we can subtract that from the total to get 500. We now have that 25x=500. Divide by 25 on both sides to get 20 weeks
What we know: A dozen costs 1.32; there are 12 in a dozen. What we need to know: How much a restaurant makes selling 1 egg at 0.99. First, find the value of one egg; you can do that by dividing the total cost (1.32) by the amount (12): 1.32 / 12 = 0.11 <-- The cost per egg is 11 cents. To find the profit of the restaurant, just subtract the cost from the price they sell it for: 0.99 - 0.11 = 0.88 <-- The profit the restaurant makes per egg is 88 cents.
