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  3. Mandy and Jordan each bought some notebooks and a three-ring binder. Mandy paid

Mandy and Jordan each bought some notebooks and a three-ring binder. Mandy paid

游客2024-01-12  48
问题 Mandy and Jordan each bought some notebooks and a three-ring binder. Mandy paid $5.85 for 3 notebooks and 1 binder. Jordan paid $4.65 for 2 notebooks and 1 binder. What is the price of one of the notebooks?
选项 A、$2.70
B、$2.25
C、$1.80
D、$1.20
E、$0.75
答案 D
解析 The correct answer is D. To solve this problem, set up a system of equations and solve for n:
3n + b=5.85
2n + b=4.65
n=1.20
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