Which steps can be taken to translate the phrase “the height of a tree is increased by seven inches” into an algebraic expression? Check all that apply. 

Replace “the height of a tree” with a variable, x.

Replace “seven inches” with a variable, x.

Replace “increased by” with an addition symbol.

Replace “seven inches” with 7.

Replace “increased by” with a multiplication symbol.

Replace “the height of a tree” with 7.

Write the expression mr023-1.jpg.

Write the expression mr023-2.jpg.

asked Feb 29, 2016 in Other Math Topics by Kayla1 Level 1 User (640 points)

2. Substitute mr025-1.jpg and mr025-2.jpg to determine if the two expressions are equivalent.


mr025-3.jpg                        mr025-4.jpg

Which statements are true? Check all that apply. 

The value of both expressions when mr025-5.jpg is 33.

The value of both expressions when mr025-6.jpg is 23.

The value of both expressions when mr025-7.jpg is 41.

The value of both expressions when mr025-8.jpg is 51.

The two expressions are equivalent.

The two expressions are not equivalent.

Juan used algebraic properties to make an equivalent expression. He listed the properties in the order that he used them. 
 

 
Step
Property Used
1
Associative
2
Distributive
3
Addition
   


Which steps match the properties used?

Fiona doubled the original amount in her savings account, s. Which expression represents her new balance and what is that new balance if mc017-1.jpg?

4. 

5. Dan’s new appliance arrived in a cardboard box in the shape of cube. What is the surface area of the cardboard box?

mc017-1.jpg

Use the formula mc017-2.jpg, where SA is the surface area of the cube and s is the length of each side.

6. Which expression is equivalent to mc004-1.jpg?

7. Which expression correctly represents “ten times the difference of a number and six”?

8. Misha’s family bought a large cattle farm. The number of acres of the cattle farm is the cube of the acres they used to own plus 10 acres. If a represents the number of acres the family used to own, which expression represents the number of acres they own now?

9. Jillian was asked to translate the expression mc006-1.jpg into words. She wrote “a number increased by nine.” Which best describes the accuracy of Jillian’s answer?

10. Which scenario could be represented by the algebraic expression mc007-1.jpg?

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2 Answers

  1. 1 3 4 7
  2. 1 4 5
  3. 3
  4. 3
  5. 3
  6. 2
  7. 1
  8. 3
  9. 3
  10. 1
  11.  
answered Feb 29, 2016 by Rod Top Rated User (559,680 points)
s t f u okay
answered Jul 18 by gavyn campbell

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