Answer:
Step-by-step explanation:
Length of the garden = 4 - 21*x - 28*y
Width of the garden = -6*x*y
Perimeter of the garden = 2*(Length + Width)
P = 8 - 42*x - 56*y - 12*x*y
Answer:
87.5 ml tube of toothpaste slightly offers the better value of money.
Step-by-step explanation:
In order to know the better value of money, we need to find the volume of each toothpaste for 1p.
For first tube of toothpaste:
87.5 ml costs 49p
Therefore, for 1 p = 87.5/49 = 1.78571429 = 1.8 ml
For second tube of toothpaste:
125 ml costs 72 p
Therefore, for 1 p = 125/72 = 1.73611111 = 1.7 ml
Since, 1.8 ml > 1.7 ml
So, 87.5 ml tube of toothpaste slightly offers the better value of money.
Answer:
x = 4, -1.5
Step-by-step explanation:
2x² - 5x - 12 = 0
2x² - 8x + 3x - 12 = 0
2x(x - 4) + 3(x - 4) = 0
(x - 4)(2x + 3) = 0
x = 4, -1.5
The graph cuts the x-axis at x = 4 and x = -1.5
Answer:
x = 12
y = 0
Step-by-step explanation:
Sum them:
2x = 24
so x = 12
12 - y = 12
so y = 0
Step-by-step explanation:
The slope of a line characterizes the direction of a line. To find the slope, you divide the difference of the y-coordinates of 2 points on a line by the difference of the x-coordinates of those same 2 points .
