Learning Materials
Features
Discover
Chapter 3: Q25. (page 143)
The sum of 3 numbers is 12. The first number is twice the sum of the second and third. The third number is 5 less than the first. Find the numbers.
The three numbers are and .3
Over 30 million students worldwide already upgrade their learning with 91影视!
All the tools & learning materials you need for study success - in one app.
Get started for free
Graph each system of equations and describe it as consistent and independent, consistent and dependent, or inconsistent.
Graph each system of inequalities. Name the coordinates of the vertices of the feasible region. Find the maximum and minimum values of the given function for this region
A toy manufacturer is introducing two new dolls, My First Baby and My Real Baby, In one hour, the company can produce 8 First Babies or 20 Real Babies. Because of demand, the company produces at least twice as many First Babies as Real Babies The company spends no more than 48 hours per week making these two dolls. The profit on each First Baby is \(3, and the profit on each Real baby is \)7.50. Find the number and types of dolls that should be produced to maximize profit.
Stamps Paula bought $22.82 worth of 49-cent
stamps and 21-cent stamps. The number of 21-cent
stamps was eight less than the number of
49-cent stamps. Solve the equation
0.49s + 0.21(s 鈭� 8) = 22.82 for s, to find the number
of 49-cent stamps Paula bought.
For Exercises 39-41, use the following information.
Adam and his family are planning to rent a midsize car for one-day trip. In the Standard Rental Plan, they can rent a car for \(52 per day plus 23 cents per mile. In the Deluxe Rental Plan, they can rent a car for \)80 per day with unlimited mileage.
39. For each plan, write an equation that represents the cost of renting a car.
What do you think about this solution?
We value your feedback to improve our textbook solutions.
Explanations 
Textbooks 
Flashcards 
91影视 AI 
Notes 
Study Plans 
Study Sets 
Find a degree 
Magazine