The distance between the school and the park is 6 km. There are 1.6 km in 1 mile.How many miles apart are the school and the par
1 answer:
As stated 1 mile equals to 1.6 km,
so do calculation to get the 6 km
1 mile = 1.6 km
Then try to divide the 6 km with 1 mile value in km which is 1.6 km so that we know exactly how many miles required to get 6 km
So the answer is 3.75 miles
To prove this
If 1 mile = 1.6,
Then,
3 miles = (1.6 x 3 ) which produce 4.8 km
0.75 mile = ( 0.75 x 1.6 ) equals to 1.2 km
4.8km + 1.2km = 6km , which proves that
3 miles + 0.75 mile = 6km
so do calculation to get the 6 km
1 mile = 1.6 km
Then try to divide the 6 km with 1 mile value in km which is 1.6 km so that we know exactly how many miles required to get 6 km
So the answer is 3.75 miles
To prove this
If 1 mile = 1.6,
Then,
3 miles = (1.6 x 3 ) which produce 4.8 km
0.75 mile = ( 0.75 x 1.6 ) equals to 1.2 km
4.8km + 1.2km = 6km , which proves that
3 miles + 0.75 mile = 6km
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Given:
The sum of two terms of GP is 6 and that of first four terms is
To find:
The sum of first six terms.
Solution:
We have,
Sum of first n terms of a GP is
...(i)
Putting n=2, we get
...(ii)
Putting n=4, we get
(Using (ii))
Divide both sides by 6.
Taking square root on both sides, we get
Case 1: If r is positive, then using (ii) we get
The sum of first 6 terms is
Case 2: If r is negative, then using (ii) we get
The sum of first 6 terms is
Therefore, the sum of the first six terms is 7.875.