Mathematics, 28.01.2020 11:31 benjaminmccutch

There are 9 books stacked on a shelf. the thickness of each book is either 1 inch or 2 inches. the height of the stack of 9 books is 14 inches. which system of equations can be used to determine x, the number of 1-inch-thick books in the stack, and y, the number of 2-inch-thick books?

a.) x + y = 14 2x + y = 9

b.) x + y = 14 x + 2y = 9

c.) x + y = 9 x + 2y = 14

d.) x + y = 9 2x + y = 14

Answers: 2

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 17:00, reaunnatowns

High schoolmathematics 5 points keith is the leading goal scorer for a team in an ice hockey league. last season, he scored 42 goals in 82 games. assuming he scores goals at a constant rate, what is the slope of the line that represents this relationship if the number of games is along the x-axis and the number of goals is along the y-axis?

Answers: 1

continue

Mathematics, 21.06.2019 17:30, liamgreene90

Student price tickets to a movie are $1 and non student tickets are $2. 350 tickets are sold and the total amount made is $450. how many non student tickets were sold ? a) 100 b) 150 c) 200 d)250

Answers: 2

continue

Mathematics, 22.06.2019 00:20, sdwhitneyhillis

Which shows how to solve the equation 3/4x=6 for x in one step?

Answers: 2

continue

Mathematics, 22.06.2019 00:30, valdezangie10

Fiona has to plot a histogram of the given data

Answers: 1

continue

You know the right answer?

There are 9 books stacked on a shelf. the thickness of each book is either 1 inch or 2 inches. the h...