Under her cell phone plan, Ella pays a flat cost of $49 per month and $5 per gigabyte. She wants to keep her bill under $60 per month. Write and solve an inequality which can be used to determine gg, the number of gigabytes Ella can use while staying within her budget.

Answer
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Inequality:
gg

3 answers

To determine how many gigabytes \( g \) Ella can use while keeping her monthly bill under $60, we can set up the following inequality based on her cell phone plan:

  1. The flat cost is $49.
  2. The cost per gigabyte is $5.
  3. Her total bill must be less than $60.

The total cost of her plan can be expressed as: \[ \text{Total Cost} = 49 + 5g \]

To stay within her budget, we can write the inequality: \[ 49 + 5g < 60 \]

Now, we will solve for \( g \):

  1. Subtract 49 from both sides: \[ 5g < 60 - 49 \] \[ 5g < 11 \]

  2. Divide both sides by 5: \[ g < \frac{11}{5} \] \[ g < 2.2 \]

Since \( g \) represents the number of gigabytes, it must be a whole number. Therefore, Ella can use a maximum of \( 2 \) gigabytes (since she cannot use a fraction of a gigabyte).

Thus, the complete answer is:

Inequality: \[ 49 + 5g < 60 \]

Solution: Ella can use a maximum of \( g = 2 \) gigabytes while staying within her budget.

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A rental car company charges $48 per day to rent a car and $0.08 for every mile driven. Bilquis wants to rent a car, knowing that:
She plans to drive 175 miles.
She has at most $110 to spend.

Write and solve an inequality which can be used to determine xx, the number of days Bilquis can afford to rent while staying within her budget.

To find out how many days \( x \) Bilquis can afford to rent a car while staying within her budget, we can set up an inequality based on the rental car company's charges:

  1. The daily rental cost is $48 per day.
  2. The cost for driving miles is $0.08 per mile.
  3. She plans to drive 175 miles.
  4. Her total budget is at most $110.

First, we calculate the total cost for driving 175 miles: \[ \text{Cost for miles} = 0.08 \times 175 \] Calculating this: \[ 0.08 \times 175 = 14 \]

Now, we can write the total cost \( C \) for renting the car for \( x \) days: \[ C = 48x + 14 \]

We want this total cost to be less than or equal to $110: \[ 48x + 14 \leq 110 \]

Now, we will solve this inequality for \( x \):

  1. Subtract 14 from both sides: \[ 48x \leq 110 - 14 \] \[ 48x \leq 96 \]

  2. Divide both sides by 48: \[ x \leq \frac{96}{48} \] \[ x \leq 2 \]

Thus, the complete answer is:

Inequality: \[ 48x + 14 \leq 110 \]

Solution: Bilquis can afford to rent the car for a maximum of \( x = 2 \) days while staying within her budget.