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Sagot :
Alright, let's go through the problem step by step.
1. Greatest number of binders Eula can buy:
Eula needs to buy binders that cost [tex]$4 each. She has $[/tex]20. To find the greatest number of binders she can buy, we divide her total money by the cost per binder:
[tex]\[ \text{Greatest number of binders} = \left\lfloor \frac{20}{4} \right\rfloor = 5 \][/tex]
So, the greatest number of binders Eula can buy is 5.
2. Greatest number of notebooks Eula can buy:
Similarly, notebooks cost [tex]$2 each. To find the greatest number of notebooks she can buy, we divide her total money by the cost per notebook: \[ \text{Greatest number of notebooks} = \left\lfloor \frac{20}{2} \right\rfloor = 10 \] Therefore, the greatest number of notebooks Eula can buy is 10. 3. If Eula buys 7 notebooks, what is the greatest number of binders she can buy?: First, calculate how much money Eula will spend on 7 notebooks: \[ \text{Cost of 7 notebooks} = 7 \times 2 = 14 \] Next, subtract this amount from Eula's total money to find out how much money she has left: \[ \text{Money left} = 20 - 14 = 6 \] Now, use the remaining money to buy binders, each costing $[/tex]4:
[tex]\[ \text{Greatest number of binders with remaining money} = \left\lfloor \frac{6}{4} \right\rfloor = 1 \][/tex]
So, if Eula buys 7 notebooks, the greatest number of binders she can buy with the remaining money is 1.
Putting all the answers together:
- The greatest number of binders Eula can buy: 5
- The greatest number of notebooks Eula can buy: 10
- If Eula buys 7 notebooks, she can buy at most 1 binder with the remaining money.
1. Greatest number of binders Eula can buy:
Eula needs to buy binders that cost [tex]$4 each. She has $[/tex]20. To find the greatest number of binders she can buy, we divide her total money by the cost per binder:
[tex]\[ \text{Greatest number of binders} = \left\lfloor \frac{20}{4} \right\rfloor = 5 \][/tex]
So, the greatest number of binders Eula can buy is 5.
2. Greatest number of notebooks Eula can buy:
Similarly, notebooks cost [tex]$2 each. To find the greatest number of notebooks she can buy, we divide her total money by the cost per notebook: \[ \text{Greatest number of notebooks} = \left\lfloor \frac{20}{2} \right\rfloor = 10 \] Therefore, the greatest number of notebooks Eula can buy is 10. 3. If Eula buys 7 notebooks, what is the greatest number of binders she can buy?: First, calculate how much money Eula will spend on 7 notebooks: \[ \text{Cost of 7 notebooks} = 7 \times 2 = 14 \] Next, subtract this amount from Eula's total money to find out how much money she has left: \[ \text{Money left} = 20 - 14 = 6 \] Now, use the remaining money to buy binders, each costing $[/tex]4:
[tex]\[ \text{Greatest number of binders with remaining money} = \left\lfloor \frac{6}{4} \right\rfloor = 1 \][/tex]
So, if Eula buys 7 notebooks, the greatest number of binders she can buy with the remaining money is 1.
Putting all the answers together:
- The greatest number of binders Eula can buy: 5
- The greatest number of notebooks Eula can buy: 10
- If Eula buys 7 notebooks, she can buy at most 1 binder with the remaining money.
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