se desea construir un tramo de carretera de dos carriles teniendo una longitud de 1500m y un ancho de via de 6.0m se utilizara material selecto para formar una sub base de 40cm y la sub base de 30cm

he spend 5.1 minutes chatting with his friends.

step-by-step explanation:

2/5+1/2=9/10

6/1-9/10=5.1

l.ln.lln.k.nkl

step-by-step explanation:

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.