We know that
• Lashonda purchased a prepaid phone card for $20.
,
• Long-distance calls cost 8 cents a minute.
,
• The remaining credit on her card is $17.12.
This problem can be expressed as
![20-0.08x=17.12](https://tex.z-dn.net/?f=20-0.08x%3D17.12)
Where <em>x</em> is the number of minutes.
We solve the equation for <em>x</em>
![\begin{gathered} -0.08x=17.12-20 \\ -0.08x=-2.88 \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20-0.08x%3D17.12-20%20%5C%5C%20-0.08x%3D-2.88%20%5Cend%7Bgathered%7D)
Then, we divide by -0.08 the equation
![\begin{gathered} \frac{-0.08x}{-0.08}=\frac{-2.88}{-0.08} \\ x=36 \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20%5Cfrac%7B-0.08x%7D%7B-0.08%7D%3D%5Cfrac%7B-2.88%7D%7B-0.08%7D%20%5C%5C%20x%3D36%20%5Cend%7Bgathered%7D)
<h2>Therefore, Lashonda's call last 36 minutes.</h2>
There are 12 inches in a foot so if there is 60 inches and you want to find how many feet it make then divide the amount of inches by 12
The school can charge $7.54 for each agenda book.
Step-by-step explanation:
Given,
Purchase price of 350 books = $1137.50
Profit they want to make = $1500
Total amount = 1137.50 + 1500 = $2637.50
Therefore;
The school must sell 350 books for $2637.50
Thus,
350 books = 2637.50 dollars
1 book = ![\frac{2637.50}{350}](https://tex.z-dn.net/?f=%5Cfrac%7B2637.50%7D%7B350%7D)
1 book = $7.535
Rounding off to nearest cent
1 book = $7.54
The school can charge $7.54 for each agenda book.
Keywords: addition, division
Learn more about addition at:
#LearnwithBrainly
C. By three feet 7x5=35 area 7x10=70 area 7+3=10