Step-by-step explanation:
The easiest approach is to realise that one hour is 3 times longer than
20
minutes. The longer the time, the more they will pave.
2
15
of a mile, in 20 minutes, how much in 60 minutes?#
They will pave 3 times more.
2
15
×
3
1
=
6
15
of a mile
6
15
=
2
5
of a mile
You could also use the 'unitary method' where you find out how much they pave in ONE minute (divide by
20
) and them multiply by
60
to find how much in one hour.
Look at what happens:
2
15
÷
20
×
60
=
2
15
×
1
20
×
60
3
=
2
15
×
3
←
exactly the same maths.
=
2
5
Answer:
4:5
Step-by-step explanation:
28:35
28/7:35/7
4:5
hopefully this helps :)
Answer:
d≈91.63m
Step-by-step explanation:
d=w2+l2=78.92+46.62≈91.63389m
select the one that says "no, the estimate should be higher."
Answer:
Hence the value of damping coefficient = 1.49071.
Step-by-step explanation:
