Respuesta :

Answer: See below

Step-by-step explanation:

For both problems, you would need to make a proportion.

A.

[tex]\frac{3.99}{8 batteries} =\frac{x}{1 battery}[/tex]                         [cross multiply]

[tex]3.99=8x[/tex]                                       [divide both sides by 8]

[tex]x=0.50[/tex]

B.

[tex]\frac{2.79}{6 batteries} =\frac{x}{1 battery}[/tex]                         [cross multiply]

[tex]2.79=6x[/tex]                                       [divide both sides by 6]

[tex]x=0.47[/tex]

Now that we know the price per battery, we know that this is the better value. For part A, a single battery costs £0.50. For part B, a single battery costs £0.47. 0.47 is cheaper than 0.5. Therefore, the 6 battery pack has the better value.

Answer:

For part A, a single battery costs £0.50. For part B, a single battery costs £0.47. 0.47 is cheaper than 0.5. Therefore, the 6 battery pack has the better value.

Step-by-step explanation:

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