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My friends and I have a disagreement on an answer to our homework. Can you guys help? 

Here's the problem:

Paul has saved $37.50 to buy a hamster, a cage, and hamster food. The hamster cost $5.50. The cage is on sale for 25% off the origional price of $29.90. The food costs $2.64. The sales tax on the total is 5%. How much will Paul pay in all? How much of his savings will he have left over?

Thanks guys!

Llama on!

MamaLlama

 Mar 3, 2015

Best Answer 

 #3
avatar+118667 
+5

Hi MamaLlama,  How are Baba and ChaCha going ?     

 

Paul has saved $37.50 to buy a hamster, a cage, and hamster food. The hamster cost $5.50. The cage is on sale for 25% off the origional price of $29.90. The food costs $2.64. The sales tax on the total is 5%. How much will Paul pay in all? How much of his savings will he have left over?

 

(5.50+0.75*29.90+2.64)*1.05

 

$$\left({\mathtt{5.5}}{\mathtt{\,\small\textbf+\,}}{\mathtt{0.75}}{\mathtt{\,\times\,}}{\mathtt{29.9}}{\mathtt{\,\small\textbf+\,}}{\mathtt{2.64}}\right){\mathtt{\,\times\,}}{\mathtt{1.05}} = {\mathtt{32.093\: \!25}}$$

Cost = $32.09

 

$${\mathtt{37.5}}{\mathtt{\,-\,}}{\mathtt{32.09}} = {\frac{{\mathtt{541}}}{{\mathtt{100}}}} = {\mathtt{5.41}}$$

 

$5.41 left over.     

 Mar 4, 2015
 #1
avatar
+5

add

$5.50

$22.43 (discounted price of cage)

$2.64

Total: $30.57

Add 5% tax

$30.57 * 0.05=$1.53

30.57 +1.53=$32.10

subtract this amount from savings

$37.50-32.10=$5.40

 Mar 3, 2015
 #3
avatar+118667 
+5
Best Answer

Hi MamaLlama,  How are Baba and ChaCha going ?     

 

Paul has saved $37.50 to buy a hamster, a cage, and hamster food. The hamster cost $5.50. The cage is on sale for 25% off the origional price of $29.90. The food costs $2.64. The sales tax on the total is 5%. How much will Paul pay in all? How much of his savings will he have left over?

 

(5.50+0.75*29.90+2.64)*1.05

 

$$\left({\mathtt{5.5}}{\mathtt{\,\small\textbf+\,}}{\mathtt{0.75}}{\mathtt{\,\times\,}}{\mathtt{29.9}}{\mathtt{\,\small\textbf+\,}}{\mathtt{2.64}}\right){\mathtt{\,\times\,}}{\mathtt{1.05}} = {\mathtt{32.093\: \!25}}$$

Cost = $32.09

 

$${\mathtt{37.5}}{\mathtt{\,-\,}}{\mathtt{32.09}} = {\frac{{\mathtt{541}}}{{\mathtt{100}}}} = {\mathtt{5.41}}$$

 

$5.41 left over.     

Melody Mar 4, 2015

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