jenniferpd09
contestada

A store owner wants to develop a new snack mix by mixing chocolate and trail mix. How many pounds of chocolate costing $18.90 per pound should be mixed with 22 pounds of trail mix costing $3.30 per pound to create a mixture worth $8.50 per pound.

The owner needs to mix _________ pounds of chocolate (round to the nearest whole pound - NO COMMAS).

Respuesta :

calculista

Answer:

The owner needs to mix 11 pounds of chocolate

Step-by-step explanation:

Let

x ----> the number of pounds of chocolate needed

we know that

The linear equation that represent this problem is equal to

[tex]18.90x+3.30(22)=8.50(x+22)[/tex]

solve for x

[tex]18.90x+72.6=8.50x+187[/tex]

[tex]18.90x-8.50x=187-72.6[/tex]

[tex]10.4x=114.4[/tex]

[tex]x=114.4/10.4[/tex]

[tex]x=11\ pounds[/tex]

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