Alana and Petra go to a used book sale, where every book is the same price. Alana buys 5 books and Petra buys 4 books. they run
into their friends Angus, who really loves to read, and discover that he has bought 19 books. Angus received a $10 discount, but he still spent $5 more than Alana and petra combined. How much does one book cost
Let's say the price of one book is the variable x Therefore, Alana is 5x and Petra is 4x Angus bought 19x, but since he had a $10 discount, it is 19x-10 Combined, Alana and Petra is 5x+4x, but since it says Angus spent $5 more, it would be 5x+4x+5 Therefore, we get the equation: 19x-10=5x+4x+5 19x-10=9x+5 10x=15 x=15/10 or 3/2 which equals 1.5 Therefore, one book costs $1.5
Step-by-step explanation: Since 1/1 = 2/2 = 3/3 etc. we can change the answer into 3/3 grams. Then we divide that by 3 which is 1/3. (Sorry if I’m incorrect)
