Question

A company uses two different sized trucks to deliver sand. The first truck can transport x cubic yards,and the second y cubic yards. The first truck makes S trips to a job site, while the second makes Ttrips.What do the following expressions represent in practical terms?a) s+ t b) x+y c) xS+Yt d) xS+Yt/s+t

Answer 1

Given the following information, we want to represent the 4 expression shown in practical terms:

a)

s + t

First truck makes "s" trips

Second truck makes "t" trips

So, "s+t" means

the total number of trips made by the two trucks

b)

x + y

the volume transported by 1st truck = x

the volume transported by 2nd truck = y

So, "x+y" is

total amount, in cubic yards, transported by the two trucks per trip

c)

xs + yt

xs is total number of cubic yards in s trips (total) >> 1st truck

yt is total number of cubic yards in total t trips (total) >> 2nd truck

Hence,

"xs + yt" means

total number of cubic yards transported by two trucks in all trips

d)

`(xs+yt)/(s+t)`

This is the total in all trips by two trucks divided by "s+t", which is total number of trips by two trucks

We can say this expression tells us:

total number of cubic yards transported by two trucks PER trip