kobeshant
Answered

Welcome to Westonci.ca, your ultimate destination for finding answers to a wide range of questions from experts. Explore thousands of questions and answers from knowledgeable experts in various fields on our Q&A platform. Our platform provides a seamless experience for finding reliable answers from a network of experienced professionals.

a car wash charges a flat rate for the first 8 minutes of washing time and also charges a certain amount for each additional minute of washing time. Gina took 12 minutes to wash her car and it cost her a total of $5.00. Kris took 17 minutes to wash his truck at a total cost of $6.25.
How much is the is the flat rate for the first 8 minutes? show equation to find answer. Plz answer this word problem.

Sagot :

apologiabiology
flat rate = x

so for the first eight minutes they both have the same rate
so this is also true
Gina took 4 minutes to wash her car and it cost her a total of $5-x
Kris took 9 minutes to wash his truck and it cost him a total of $6.25-x
so for overtime 4mins=5-x,  9mins=6.25-x
4 times 9 = 36 so
36 mins = (45-9x)=(25-4x)
so 45-9x=25-4x
subtract 25 from both sides and get
20-9x= -4x
subtract add 4x to both sides
20-5x=0
factor out the five
5(4-x)=0
(4-x) must =0
4-x=0
add x to both sides
4=x
it cost $4 for flat rate
We appreciate your time on our site. Don't hesitate to return whenever you have more questions or need further clarification. We hope this was helpful. Please come back whenever you need more information or answers to your queries. We're glad you chose Westonci.ca. Revisit us for updated answers from our knowledgeable team.