Mathematics, 19.11.2020 21:40, miajacobs110

1. MARÍA COMPRÓ 40 REGLAS, UNAS A $5 Y OTRAS A $7. GASTO $230. ¿CUÁNTAS REGLAS DE CADA TIPO COMPRO? 2. EN LA BODEGA HAY 25 ARCHIVEROS, UNOS DE TRES CAJONES Y OTROS DE CUATRO. SI EN TOTAL HAY 85 CAJONES, ¿CUÁNTOS ARCHIVEROS HAY DE CADA TIPO?
3. SE FORMÓ UN TUVO DE 42.5 M UNIENDO QUINCE TRAMOS. UNOS TRAMOS ERAN DE 2.7M Y OTROS DE 3.1 M. ¿CUÁNTOS TRAMOS DE CADA TIPO USARON?

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1. MARÍA COMPRÓ 40 REGLAS, UNAS A $5 Y OTRAS A $7. GASTO $230. ¿CUÁNTAS REGLAS DE CADA TIPO COMPRO?...