Note: 1 inch = 2.54 cm is an exact converion, while 1 mile=1.6km is only approximate.
Using conversion
1 inch=2.54 cm
1 mile = 1760*3*12 = 63360 in = 160934.4 cm
If 1 inch = 1 mile, then
2.54 cm : 1 mile = 1.609344 km
1 cm : 0.6336 km (exactly), or
1 cm : 0.6 km (approximately)
Using both conversions:
1 inch = 2.54 cm : 1 mile = 1.6 km
=>
2.54 cm : 1.6 km
1 cm : 1.6/2.54=0.6299 km (approximately), or
1 cm : 0.6 km (approximately)
Answer:
1.2 rolls
Step-by-step explanation:
6 rolls=5 dresses
1.2 rolls =1 dress
hope i helped:)
The Pythagorean Theorem works for all RIGHT triangles.
Sn = n/2(a + l); where sn is the sum of n terms, n is the number of terms, a is the first term and l is the last term.
1390 = n/2(3 + 136)
2780 = 139n
n = 2780/139 = 20
2nd term = 3 + 20 = 23
3rd term = 23 + 20 = 43
First three terms = 3, 23, 43
option b.
