Saturday

December 20, 2014

December 20, 2014

Posted by **Delilah** on Friday, December 7, 2012 at 8:13pm.

1.

2z - 3y - 8z + y

2.

9 - 7t + 1 + 4t

3. For the summer, Tia buys 3 T-shirts and 2 pairs of shorts. Her brother buys 4 T-shirts and 1 pair of shorts. Define and use variables to represent the total cost.

I have no idea how to do this! Please help!

- 7th grade math -
**Ms. Sue**, Friday, December 7, 2012 at 8:16pm1.

2z - 3y - 8z + y

Combine like terms:

2z - 8z - 3y + y

-6z - 2y

Do the second problem the same way.

3. This problem isn't clear. Do we assume that all T-shirts cost the same? Do all shorts cost the same? Please clarify. You may need to ask your teacher about this one.

- 7th grade math -
**Delilah**, Friday, December 7, 2012 at 8:21pmso is:

#2.

10 - 3t

- 7th grade math -
**Ms. Sue**, Friday, December 7, 2012 at 8:26pmYay! You're right! :-)

**Answer this Question**

**Related Questions**

7th grade pre-algebra - How to write an expression for the perimeter of the ...

7th grade math please check ASAP please! - Tom buys a shirt for $22.00 plus 7% ...

math - I am doing pre algabra math and I am in 7th grade I need help to simplify...

math - Andrea buys four shirts and three pairs of pants for $85.50. She returns ...

7th grade Math - Write and simplify an expression for the perimeter of the ...

8th grade - A store that personalizes shirts chargers $20 for a shirt plus $.75 ...

7th grade math - Write and simplify an expression for the perimeter of the ...

7th math - At the mall, you spent a total of $170.86. You bought 2 pairs of ...

7th grade math help - I HAVE NO IDEAAAAAA! Simplify the expression. 6. –6 – 7(c...

8th grade Math - I'm actually in 7th grade, but I'm doing 8th grade pre-algebra...