Your cellphone company charges a $18 monthly fee, plus $0.11 per minute of talk time. One month your cell phone bill was $70.80.
2 answers:
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Answer: 144 inches.
Step-by-step explanation:
1. To solve this problem you must remember the formula for calculate the perimeter of a rectangle, which is shown below:
Where is the lenght and
is the width.
2. You know the perimeter and the width, then you can solve for the length, as following:
When dividing two fractions, we flip the second fraction and multiply by it (that is, use the reciprocal).
÷
= ×
You can either multiply top by top and bottom by bottom or you can simplify by dividing out common factors.
= ×
=