Answer:
100.00
Step-by-step explanation:
x=number of months until the costs are the same
50 + 20x = 25 + 30x
25 = 10x
x = 2.5 months
50 + 2.5(20) =$100.00
Answer:
Area of smaller square: y^2 yards^2,
area of larger square: 4*y^2 yards^2.
Step-by-step explanation:
If the smaller square has a side which length is y yards, its area can be calculated as the square of its side, so:
Area of smaller square = y^2
If the larger square has a side which length is twice as long as the side of the smaller square, its side is equal to 2*y yards, so its area will be:
Area of larger square = (2*y)^2 = 4*y^2
So the area of the smaller square is y^2 yards^2, and the area of the larger square is 4*y^2 yards^2.
If
, then you can find partial derivatives:
.
At point A(-3,2,5) (this is the point which lies on the surface, because
) these derivatives have values:
-- the slopes at x and y- directions, respectively.
Answer:
3
Step-by-step explanation:
The number of tubes can be found from an inequality that relates the number of square inches that can be painted to the number of square inches that must be painted.
Let t represent the number of tubes.
1400t ≥ 3672 . . . . . the number of tubes that will paint at least 3672 in²
t > 2.623 . . . . . divide by 1400
If only whole numbers of tubes are available, then ...
3 tubes are needed to paint the ramp.
