Wang Conner
07/17/2023 · Senior High School
Grace is collecting dimes and quarters in a jar. She has collected \( \$ 7.50 \) so far and has \( d \) dimes and \( q \) quarters. The relationship between the number of dimes and quarters and the amount of money Grace has in dollars in the jar can be represented by the equation \( 0.1 d+0.25 q=7.50 \). Select all th ordered pairs \( (d, q) \) that are solutions to this equation.
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The ordered pairs \( (d, q) \) that are solutions to the equation \( 0.1d + 0.25q = 7.50 \) are: (0, 30), (5, 28), (10, 26), (15, 24), (20, 22), (25, 20), (30, 18), (35, 16), (40, 14), (45, 12), (50, 10), (55, 8), (60, 6), (65, 4), (70, 2), (75, 0).
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