Under his cell phone plan, Robert pays a flat cost of $67 per month and $4 per gigabyte. He wants to keep his bill under $80 per month. Which inequality can be used to determine gg, the maximum number of gigabytes Robert can use while staying within his budget?
g = number of gigabytes
67 + 4 g < 80
Subtract 67 to both sises
4 g < 13
g < 13 / 4
g < 3.25
Under her cell phone plan, Mariana pays a flat cost of $47.50 per month and $3 per gigabyte. She wants to keep her bill under $80 per month. Which inequality can be used to determine xx, the maximum number of gigabytes Mariana can use while staying within her budget?
Under her cell phone plan, Mariana pays a flat cost of $47.50 per month and $3 per gigabyte. She wants to keep her bill under $80 per month. Which inequality can be used to determine xx, the maximum number of gigabytes Mariana can use while staying within her budget?
To determine the maximum number of gigabytes (gg) Robert can use while staying within his budget, we can set up an inequality based on his cell phone plan.
Let's assume gg represents the number of gigabytes that Robert can use.
According to the problem, Robert pays a flat cost of $67 per month and $4 per gigabyte. So, his total cost (T) for the month can be calculated as:
T = $67 + $4 * gg
We need to find the inequality that represents Robert's bill staying under $80 per month. So, we can set up the following inequality:
T ≤ $80
Substituting the value of T, we get:
$67 + $4 * gg ≤ $80
Simplifying the inequality, we have:
$4 * gg ≤ $13
Dividing both sides of the inequality by $4, we get:
gg ≤ $13 / $4
Therefore, the inequality that represents the maximum number of gigabytes Robert can use while staying within his budget is:
gg ≤ $13 / $4