He paid $4.29 for every 3 protein bars he bought. He bought 9 protein bars in all. Which equation can be used to determine b, the total amount Coach Fowler spent on protein bars?

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Answer 1 · 2016-12-14T06:43:17

$b = 9/3 xx 4.29$

$b=12.97$

Coach pays $$4.29$ for 3 bars.

One method would be to divide $$4.29$ by 3 to find the price of one bar, because then it is possible to find the price of any number of bars.

$$4.29 div 3 = $1.43$ per bar.

Now you can make an equation:

$b = 1.43 xx 9$

Another method is to include the division by 3 in the equation :

$b = 9/3 xx 4.29$

This indicates that for every group of 3 bars, the price is $4.29.

The answer will be: $b = $12.87$