What is the inequality of this question? Make sure to add signs like > and <

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.

1 answer

To determine how many biking outfits \( x \) Alonso can purchase while staying within his budget, we first need to calculate his remaining budget after his initial purchases.

  1. Initial amount Alonso has: $460
  2. Cost of the new bicycle: $270.71
  3. Cost of 4 bicycle reflectors: \( 4 \times 3.09 = 12.36 \)
  4. Cost of bike gloves: $33.71

Next, we can calculate the total spent:

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

Calculating that step-by-step:

\[ \text{Total cost spent} = 270.71 + 12.36 = 283.07 \]

\[ \text{Total cost spent} = 283.07 + 33.71 = 316.78 \]

Now, subtract the total spent from his initial budget to find the remaining amount:

\[ \text{Remaining amount} = 460 - 316.78 = 143.22 \]

Now we express the total cost of the biking outfits that Alonso wants to buy:

  • Cost of each outfit is $68.20. Therefore, the cost for \( x \) outfits is \( 68.20x \).

To stay within his remaining budget, the cost of the outfits must be less than or equal to the remaining amount:

\[ 68.20x \leq 143.22 \]

Now to solve the inequality for \( x \):

  1. Divide both sides by 68.20:

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

Calculating the division:

\[ \frac{143.22}{68.20} \approx 2.1 \]

Since \( x \) must be a whole number (as he can't purchase a fraction of an outfit), we take the largest whole number that satisfies the inequality:

\[ x \leq 2 \]

Thus, Alonso can purchase a maximum of 2 biking outfits while staying within his budget. The final inequality representing this situation is:

\[ x \leq 2 \]

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