4y - 2z = -15
x = 2, y = -2, z = 4; (2, -2,4)
Is (2,-2,4) a solution of the system of equations? Yes or no?
The volume of a rectangular prism is 336 cubic centimeters. The height of the prism is 21 centimeters.
Suppose the base of the pyramid has length = l units, and width = w units.
Suppose that the height of the pyramid is of h units,
then:
is the volume of that pyramid.
The base is a rectangle with length = L units, and width = W units, so its area is:
The volume of a rectangular prism is 336 cubic centimeters.
3 x 336 = lwh
lwh = 1008
The area of the base of the prism is 48 square centimeters.
48 x h = 1008
h = 21
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Answer:
7h
Step-by-step explanation:
Answer:
$168.75
Step-by-step explanation:
if it's narked down by 20% then $135 is 80% of the original price
80 = 135
100 = x
80x = 100×135
x = $168.75
A bike is on sale for $135. The original price of bike is 135
Solution:
Given that bike is on sale for $ 135
The mark down price is 20 %
We need to find the original price of the bike
Hence we can say that,
Selling price of bike = 135
Mark down price = 20%
Original price of bike = ?
The cost price is given as:
By substituting the values we get,
Hence the original price of bike is $ 168.75
6x-7y=42
Answer:
Step-by-step explanation: