Question

Com uma lata de tinta dá para pintar 10 m² de parede. Quantas latas serão necessárias para pintar uma parede de 5m de largura por 2,5 de altura? a. 1 ( ) b. 2( ) c. 3 ( ) d. 4 ( ) e. 5 ( )
URGENTE!!!! me ajudem pfv!!!

Answer 1

Answer:

b.   2 cans of ink

Step-by-step explanation:

In order to calculate the number of cans you need to paint the complete wall, you first calculate the area of the wall by using the information about its width and height:

$A=(5m)(2,5m)=12.5m^2$

With one can you can paint 10m^2 of wall, with two cans you can paint 20m^2, which is enough to paint the wall of 12.5m^2.

Then, you need only two cans of ink

b.  2