kell22wolf kell22wolf

03-02-2019
Mathematics

contestada

Liz had 140 pens and Inna had 100 pens. After Inna gave Liz some pens, Liz had 3 times as many pens as Inna. How many pens did Inna give Liz?

Respuesta :

mathecoach mathecoach

03-02-2019

Answer:

140 + x = 3 * (100 - x)

140 + x = 300 - 3x

140 + 4x = 300

4x = 160

x = 40

Inna gave Liz 40 pens.

Answer Link

Otras preguntas

What are the advantages and disadvantages of globalization

What are the advantages and disadvantages of globalization

how do you balance __H2SO4 + __B(OH)3 --> __B2(SO4)3 + __H2O

Hey guys, I need 5 sentences!¿Prefieres viajar en coche, en tren, en barco o en avión? ¿Por qué?

Hey guys, I need 5 sentences!¿Prefieres viajar en coche, en tren, en barco o en avión? ¿Por qué?

What are the advantages and disadvantages of globalization

What are the advantages and disadvantages of globalization

Hey guys, I need 5 sentences!¿Prefieres viajar en coche, en tren, en barco o en avión? ¿Por qué?

Hey guys, I need 5 sentences!¿Prefieres viajar en coche, en tren, en barco o en avión? ¿Por qué?

how do you balance __H2SO4 + __B(OH)3 --> __B2(SO4)3 + __H2O