20/100 * X = 8
X = 8*100/20
X=40
Answer:
220
Step-by-step explanation:
plug it into surface area formula for rectangular prisms
A=2(wl+hl+hw)
Answer:
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Step-by-step explanation:
Answer:
The solution is: (1,-3)
Step-by-step explanation:
Given equations are:
x-y=4 Eqn 1
4x+y = 1 Eqn 2
Substitution involves finding value of a variable from one equation and putting in other equation
From equation 1
x = y + 4
Putting in equation 2

Putting y = -3 in equation 1

Hence,
The solution is: (1,-3)