Answer:
x
Step-by-step explanation:
The cube root of x to the power of 3 is
( )³ = (
)³ = x
or
= x
Simplify: 8.7 + 3.2(2p – q) + 2.55 p
2 answers:
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There are 38 five point questions and 30 two points questions.
Step-by-step explanation:
Given,
Worth of points in test = 250
Number of questions = 68
Let,
x represent the number of 5 points questions
y represent the number of 2 points question
According to given statement;
x+y=68 Eqn 1
5x+2y=250 Eqn 2
Multiplying Eqn 1 by 2
Subtracting Eqn 3 from Eqn 2
Dividing both sides by 3
Putting x=38 in Eqn 1
There are 38 five point questions and 30 two points questions.
Keywords: linear equation, elimination method
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