We need two equations for this.
A) (H * J) / (H + J) = 3
Harry is 8 hours faster than Jimmy
B) H + 8 = J
Inserting equation B into A gives us:
A) (H * (H+8))/ (H + H +8) = 3
H^2 +8H / (2H +8) = 3
H^2 + 8H = 6H + 24
H^2 + 2H -24 = 0
H = 4
and so J = 12
Harry takes 4 hours and Jimmy takes 12 hours.
Answer:
A
Step-by-step explanation:
B, C and D are all equations.
A is the only one that is not.
The answer is A.
(Image below)
Keep in mind that the first number in a coordinate is always on the x-axis (the horizontal line) and the second number is on the y-axis (the vertical line).
If the question asks us to plot (-3, 0), we need to find -3 on the horizontal line and find 0 on the vertical line.
Since 0 means that we go 0 units up, we can just plot the point at -3 on the x-axis.
Next, we need to plot (3, 5). First, let's find the first coordinate by locating 3 on the horizontal axis. Now, we need to find 5 up from that point, because our y-coordinate is 5.
means doing the inverse transformation twice.
The forward transformation is given as
so the inverse transformation is
and
Answer:
61 markers
Step-by-step explanation:
41+20=61 markers