Answer:
h = 21.5cm.
Step-by-step explanation:
<em>Step one:</em> Simplify the volume.
220.16 x (pi) = 691.65cm^3.
<em>Step two:</em> Isolate h.
Cylinder volume equation: V = (pi)(r^2)(h), where r is the radius and h is the height.
Divide out the pi and r^2 on both sides to isolate h and move the equation to V/(pi)(r^2) = h.
<em>Step three:</em> Solve for h.
691.65/(pi)(3.2^2) = 21.5cm rounded to the nearest tenths place.
To illustrate this, please check the diagram below.
Answer:
<em>Number of erasers bought = 122</em>
<em>Number of markers bought = 700</em>
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Step-by-step explanation:
Given that:
Two items to be bought:
1. Eraser for the dry board
2. Maker
Total items bought = 822
Total money spent = $953
Cost of each eraser = $1.50
Cost of each marker = $1.10
Let the number of erasers bought =
Let the number of markers bought =
As per question statement:
Multiplying equation (1) with 11 and subtracting from equation (2):
By equation (1):
Therefore, the answer is:
Number of erasers bought = 122
Number of markers bought = 700