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Ralph bought 3 boxes with 20 pencils each and 4 boxes with 10 pens each. To find the total number of pencils and pens, Ralph evaluated 3×20+4x10=720. is his answer reasonable? Explain.​

Respuesta :

MoniMS

Answer:

No, it's actually 100

Step-by-step explanation:

If you put brackets in the right places you'll see (3*20)+(4*10)=60+40=100

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