SaiBook.us Algebra

Home Course Section

Register Enroll

Step-2

Title: Substitute the varible value in the expression

Grade: 8-a Lesson: S2-L1

Explanation: Hello Students, time to practice and review the steps for the problem.

Lesson Steps

Step	Type	Explanation	Answer
1	Problem	Determine the value of an expression when x = 1, y = 4, z = 2 \$ x/y + y/z + z/x \$
2	Step	Now substitute x,y,z values in expression	\$ 1/4 + \cancel4^2/\cancel2^1 + 2/1 \$
3	Step	After cancellation we get	\$ 1/4 + 2 + 2\$
4	Hint	Taking LCM as 4
5	Step	After simplification	\$ (1 + 8 + 8)/4 \$
6	Step	After adding we get	\$ 17/4\$
7		Answer	A

Step

Type

Explanation

Answer

Problem

Determine the value of an expression when x = 1, y = 4, z = 2
\$ x/y + y/z + z/x \$

Step

Now substitute x,y,z values in expression

\$ 1/4 + \cancel4^2/\cancel2^1 + 2/1 \$

Step

After cancellation we get

\$ 1/4 + 2 + 2\$

Hint

Taking LCM as 4

Step

After simplification

\$ (1 + 8 + 8)/4 \$

Step

After adding we get

\$ 17/4\$

Answer