1. El enigma de la máquina de hacer elementos gráficos. Si les toma 5 minutos a 5 máquinas hacer 5 elementos gráficos, ¿cuánto tiempo les tomará a 100 máquinas crear hacer 100 elementos?
2. ¿Cómo hacer para que cuatro números 9 combinados con el uso de signos aritméticos den como resultado 100?
3. Sin cambiar de lugares las cifras, coloca entre ellas los signos “+” y “-“ de tal forma que la suma sea 100 (solo puedes usar los signos 3 veces).
1 2 3 4 5 6 7 8 9 = 100

5   1/4   miles per hour

step-by-step explanation:

15   3/4 / 3 = 5   1/4

i believe the correct answer is option 4.principalities were small territories that were run by russian rulers.

which statement correctly defines principalities in northern asia in the 1200s? principalities were small territories that were run by russian rulers.

hope i could ! : )

step-by-step explanation:

let pq = qr = rs = x, and xz = y and zu = z.

if the horizontal lines are parallel, then corresponding segments are in proportion:

substitute:

therefore 3 = y = z.

xu = y + z → xu = 3 + 3 = 6