Thursday

July 31, 2014

July 31, 2014

Posted by **Alex** on Monday, November 4, 2013 at 6:43am.

15. Sue ordered 4 pizzas for 6 dollars each and 2 twelve packs of coke for x amount. Use the distributive property to create an equivalent expression.

Ans: not sure-seems like they're not related.

6*4=2(12x)

24 =2(12 + x)

18. One person in my class will call 3 people, and each of those people will contact 3 other people, and so on. How many people will be contacted in the 5th round? Write your answer in exponent form and find the value.

Ans: 3^5 = 243

- 6th grade math -
**Steve**, Monday, November 4, 2013 at 11:44am4*6 + 2x

or

2(6+x)

consider that at each round, if there are x people already contacted, then 3x more will be contacted, making for a total of 4x after the round. So, the sequence looks like this:

1

1+3 = 4

4+12 = 16

16+48 = 64

...

Round n: 4^(n-1) + 3*4^(n-1) = 4^n

So, for round 5, there are already 4^4 = 256 people, and 3*256 = 768 more will be contacted, totaling 4^5 = 1024 at the end of round 5.

**Related Questions**

6th grade math - What is the number of 5/6s in 3? Is the answer 18/ 5 ? If not, ...

math 1st grade can you check the answers - can you check this set of answer {10,...

6th Grade Science : Newton's First Law of Motion - Explain the idea of ...

6th grade - how do I get 18 from these numbers: 9 18 20 24

6th grade math - Can you check these, please? Convert each of the following ...

6th grade math - Just wondering if you could check my answer to this question. ...

6th grade advanced math - 1) -/-3/____ -3 //= what's the absulute value of. In ...

6th grade math - 1.50.but can you explain more detailed about the 0.2 thingy.

6th grade math - A bag of fetilizer that weighs 18 3/4 pounds can cover 5000 sq ...

6th grade math - 1/3p + 7 = 12 - 2/3p what does P equal first check how Avril ...