Answer:
Fir trees are 9 meters and the pine trees are 12 meters tall.
Step-by-step explanation:
Let the height of the fir tree = x and the height of the pine tree = y (in meters).
It is given that the combined height of both the trees is 21 meters.
That is, 
Also, the height of 4 fir trees is 24 meters more than that of the pine tree.
That is, 
i.e. 
So, we get the system of equations,
x+y=21
4x-y=24
Adding both the equations, gives us,
5x = 45 i.e. x= 9.
So, x+y=21 ⇒ y= 21 - x ⇒ y= 21 - 9 ⇒ y= 12.
Thus, the fir trees are 9 meters tall and the pine trees are 12 meters tall.
1. The answer is 1. To get this answer, substitute x=3 into the function and solve for f(x)
2. The answer is 12. Substitute -5 in place for f(x) and isolate and solve for x.
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Answer:
The estimate volume of the box holding the tissue boxes V;
V = nv = 9×125
V = 1125 cubic inches
Attached is an image for further understanding of the question;
Step-by-step explanation:
Given;
Volume of each tissue box v = 125 cubic inches
Number of tissues n from the attached image;
n = 3×3 = 9 tissue boxes
The estimate volume of the box holding the tissue boxes V;
V = nv = 9×125
V = 1125 cubic inches
Answer:
24
Step-by-step explanation:
