Alonso has $460 to spend at a bicycle store for some new gear and biking outfits. Assume all prices listed include tax.

He buys a new bicycle for $270.71.
He buys 4 bicycle reflectors for $3.09 each and a pair of bike gloves for $33.71.
He plans to spend some or all of the money he has left to buy new biking outfits for $68.20 each.

Write and solve an inequality which can be used to determine xx, the number of outfits Alonso can purchase while staying within his budget. WHat is the inequality?

1 answer

To determine the number of biking outfits \( x \) that Alonso can purchase while staying within his budget, we start with the total amount of money he has and subtract the amounts he has already spent.

  1. Initial Budget: Alonso has $460.
  2. Cost of Bicycle: He spends $270.71 on a new bicycle.
  3. Cost of Reflectors: He buys 4 reflectors at $3.09 each, which costs \( 4 \times 3.09 = 12.36 \).
  4. Cost of Gloves: He buys a pair of bike gloves for $33.71.

Now, let's calculate the total amount Alonso has spent so far.

\[ \text{Total spent} = \text{Cost of Bicycle} + \text{Cost of Reflectors} + \text{Cost of Gloves} \]

Substituting the values we have:

\[ \text{Total spent} = 270.71 + 12.36 + 33.71 \]

\[ \text{Total spent} = 316.78 \]

Next, we determine how much money he has left after these purchases.

\[ \text{Money Left} = 460 - 316.78 = 143.22 \]

Now we can express the amount he can spend on biking outfits. Each biking outfit costs $68.20. If he buys \( x \) outfits, the total cost for the outfits will be \( 68.20x \).

To stay within his budget, we set up the inequality:

\[ 68.20x \leq 143.22 \]

This inequality can be solved for \( x \) by dividing both sides by 68.20:

\[ x \leq \frac{143.22}{68.20} \]

Calculating the right side:

\[ x \leq 2.1 \]

Since \( x \) must be a whole number (he can't buy a fraction of an outfit), the largest whole number that satisfies this inequality is \( 2 \).

Final Inequality: \[ 68.20x \leq 143.22 \]