Answer:
Below.
Step-by-step explanation:
This is a square based pyramid.
There are:
5 Faces (one on the base and 4 side faces)
8 edges. ( 4 on base and 4 on side)
5 vertices (4 on the base and one on the top)
Answer:
22 2/9
Step-by-step explanation:
When z "varies jointly" with x and y, it can be described by the formula
z = kxy
Here, we have bags of mulch (n) varying jointly with area (a) and depth (d), both in feet. The given information can let us find the value of k.
n = kad
10 = k·(120)(1/4)
10/30 = k = 1/3 . . . . . divide by the coefficient of k
Now, we can fill in the other values of interest.
n = (1/3)·(200)·(1/3) = 200/9
n = 22 2/9
You need 22 2/9 bags of mulch to cover 200 ft² to a depth of 4 inches.
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<em>Comment on the problem</em>
This problem requires the formula be written with both area and depth expressed in feet, yet it gives depth in inches. The formula can also be written using depth in inches. In that case, k = 1/36.
Answer:
x=-2
y=5
Step-by-step explanation:
x=28-6y
2x-3y=-19
(substitute the value of x)
2(28-6y)-3y=-19
y=5
x=28-6*5
x=-2
the correct answer for this problem: x= -1/3y + 2
Let’s solve for x
3x + y= 6
Add -y to both sides
3x + y + -y = 6+ -y
3x = -y + 6
Divide both sides by 3
3x/3 = -y + 6/ 3
And so your answer is at the top hope this helps.
