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Suppose you start with at least $52 in your savings account and deposit $27 each week. Write an inequality to describe how much money you have after w weeks. If you do this for 11 weeks, will you have enough to buy a bicycle that costs $340? Show your work.

 Oct 19, 2016
edited by GAMEMASTERX40  Oct 19, 2016
edited by GAMEMASTERX40  Oct 19, 2016

Best Answer 

 #2
avatar+118673 
+5

Hi Gamemasterx40,  laugh

 

Suppose you start with at least $52 in your savings account and deposit $27 each week. Write an inequality to describe how much money m you have after w weeks. If you do this for 11 weeks, will you have enough to buy a bicycle that costs $340? Show your work.

 

52,   52+27,    52+27*2, ..............    52+27w

 

 

After w weeks I will have     52+27w  dollars  

 

After 11 weeks this equals

52+27*11 = 349

 

which is enough to buy the bike that I want.    

Mmm  in 3 months I can have that bike  cool

 

 

 

 

 

*

 Oct 19, 2016
 #1
avatar
+5

You can use greater than or equal as an inequality since there can be tax or bonus (Depends very much, could be an equality aswell)
m (total) >/= 52 (start value) + 27 . w (weekly deposit)
So, taking 11 as time, you can use
M >/= 52 + 27*11
M >/= 52 + 297
M >/= 349 

If the bike costs you 340, and obviously 349 > 340
Yes, you can buy one

 Oct 19, 2016
 #2
avatar+118673 
+5
Best Answer

Hi Gamemasterx40,  laugh

 

Suppose you start with at least $52 in your savings account and deposit $27 each week. Write an inequality to describe how much money m you have after w weeks. If you do this for 11 weeks, will you have enough to buy a bicycle that costs $340? Show your work.

 

52,   52+27,    52+27*2, ..............    52+27w

 

 

After w weeks I will have     52+27w  dollars  

 

After 11 weeks this equals

52+27*11 = 349

 

which is enough to buy the bike that I want.    

Mmm  in 3 months I can have that bike  cool

 

 

 

 

 

*

Melody Oct 19, 2016
 #3
avatar+73 
-4

Thanks!!!!

GAMEMASTERX40  Oct 19, 2016

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