Hasan plans to choose a book from a section of the store where everything is 25%25% off. He writes the expression d−0.25dd-0.25d
to find the sale price of the book if the original price is dd dollars. Bella correctly writes another expression, 0.75d0.75d, that will also find the sale price of the book if the original price is dd dollars. Use the drop-down menus to explain what each part of Hasan's and Bella's expressions mean.
2 answers:
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9514 1404 393
Answer:
no solution
Step-by-step explanation:
The equations describe parallel lines. There are no values of x and y that will satisfy both equations.
In standard form, the two equations are ...
3x +7y = 21
3x +7y = -42 . . . . . with positive leading coefficient
If (x, y) values satisfy the first equation, they cannot satisfy the second equation, and vice versa.
