Saturday

April 19, 2014

April 19, 2014

Posted by **Bianca** on Tuesday, July 24, 2007 at 3:02am.

Let x be the book price and y be the magazine price, both in cents. Your statements about the two purchases can be written

4x + 3y = 145

and

2x + 5y = 125

Now solve those two equations for x and y. A good first step would be to convert (double both sides of) the second equation to give you

4x + 10 y = 250

Combining that with the first equation can eliminate the x variable and give you

7 y = 105

y = 15 cents

We will be happy to critique your work

**Related Questions**

Algerbra 1 - Shane and Kate are preparing to go on long car trips with their ...

Math - A book store sells books for $4 each. When a customer purchases 2 books ...

Math - The number of library books in a school increased by 20% after it bought...

Math - The number of library books in a school increased by 20% after it bought ...

Math - 5 books and 9 magazines cost $150.50 altogether. 9 books and 5 magazines ...

Math - 5 books and 9 magazines cost $150.50 dollars altogether. 9 Books and 5 ...

pre calc - A math teacher uses four algebra books, two geometry books, and three...

math - Mickey bought 3 books from the bargain bin at his school's book fair and...

MATHS - Mrs.Koh purchased new books for the school library, of which 6 were ...

English - 2. In which of the following sentences is the symbol used correctly? D...