body{margin:0;} noscript{z-index: 10000; position: fixed; display: block; height: 100%; width: 100%; background: #fff;} noscript .fa{font-size: 40px; display:block; color: #daa520;} noscript div{margin-top: 6%; padding-left: 20px; padding-right: 20px; text-align: center;} ! You must have JavaScript enabled to use this site.

Envision Math 2.0: Grade 6, Volume 1

EM

Envision Math 2.0: Grade 6, Volume 1 View details

Review

Exercise 8 Page 169

Substitute 7, 4, 8, and 1 for n, x, y, and z, respectively, in the given expression.

28

Practice makes perfect

To evaluate the given expression for n=7, x=4, y=8, and z=1, we should substitute 7, 4, 8, and 1 for n, x, y, and z, respectively, in the given expression and then simplify.

y^2 ÷ 2x+ 3n- z

SubstituteValues

Substitute values

8^2 ÷ 2( 4)+ 3( 7)- 1

Calculate power

64÷ 2(4)+3(7)-1

Multiply

64÷ 8+21-1

Calculate quotient

8+21-1

Add and subtract terms

28

Subchapter links

Topic Essential Question p.167

Vocabulary Review p.167

Use Vocabulary in Writing p.167

1 Understand and Represent Exponents p.168

2 Find Greatest Common Factor and Least Common Multiple p.168

3 Write and Evaluate Numerical Expressions p.169

4-5 Write and Evaluate Algebraic Expressions p.169

6 Generate Equivalent Expressions p.170

7 Simplify Algebraic Expressions p.170