Circunference=2 times pi time r
if pi=3 and r=4.5
circunerence=2 times 3 times 4.5=3 times 2 tiimes 4.5=3 times 9=27
answer is 27cm
Answer:
Step-by-step explanation:
The answer is 33.2
Exchange : 63m = 6300 cm; 56m21cm= 5621cm
So the lengths of the ribbon will be left is : 6300 - 5621 = 679cm = 6.79 m
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Answer:
x=2 y=-2
Step-by-step explanation:
you can solve this with the elimination process
-10x+6y=-32
-6x+6y=-24
you can multiply the bottom equation by a -1
-10x+6y=-32
-1(-6x+6y=-24)
making it
-10x+6y=-32
6x-6y=24
this allows you to cancel out 6y because 6y-6y=0
so you are left with
-10x=-32
6x=24
add them
-10x=-32
+6x=24
________
-4x=-8
divide by -4=2
x=2
plug that into the original equation
-10(2)+6y=-32
-6(2)+6y=-24
=
-20+6y=-32
-12+6y=-24
add them
-20+6y=-32
+-12+6y=-24
_________
-32+6y=-56
add 32
-56+32=-24
y=-24
