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iren [92.7K]
2 years ago
9

#2) The Ramy family went

Mathematics
1 answer:
suter [353]2 years ago
5 0
If there were only sandwiches bought, there would be 15, if there were only salads bought there would be 20. There’s probably more than one possibility, but that’s the best I can do, considering how long it’s been since I’ve done this type of problem. I’m all the way to learning determinants, so I really have to think to remember these. Sorry in advance if this doesn’t help at all, I’m not the best at this, but I can still try.

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Which equation is true when r = 7 ?
jeka57 [31]

Answer:

7 = 49 ÷ r

Step-by-step explanation:

To find the equation that is true when r = 7, we need to find a number after the equals sign that is a multiple of 7.

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7, 14, 21, 28, 35, 42, 49, 56, 63, 70, 77...

Therefore, the only answer option in which the number after the equals sign is a multiple of 7 is:

7 = 49 ÷ r

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   6 = 30 ÷ r

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⇒ 7 = 54 ÷ 7

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⇒ 7 = 49 ÷ 7

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⇒ 9 = 72 ÷ 7

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Help please..........//
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