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Mariulka [41]
3 years ago
12

If 7 pens weigh 68.4 grams, how many grams will 4 pens weigh?

Mathematics
1 answer:
inysia [295]3 years ago
7 0

Answer:

Step-by-step explanation:

Step 1- Divide the total grams of 7 pens

68.4 divided by 7= 9.77143

Step 2- Multiply by 4

9.77143 times 4= 39.08572

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1. What is the measure in radians for the central angle of a circle whose radius is 6 cm and intercept arc length is 5.4 cm?
fgiga [73]
Hello!

1.
find circumferece
c=2pir
c=2*6*pi=12pi
intercept is 5.4

2pi radians=all

part/whole=part/whole
5.4/12pi=x/2pi
times both sides by 12pi
5.4=6x
divide both sides by 6
0.9=x
answer is 0.9 radians



2. 
assuming 9pi/5 radians

find circumference
c=2pir
c=2*26.9*pi
c=53.8pi

arc/circumference=(9pi/5)/2pi

x/(53.8pi)=(9pi/5)/(2pi)
x/(53.8pi)=18/5
times both sides by 53.8pi
x=608.46266 m
about x=608.46 m


Hope this Helps! Have A Wonderful Day! :) 
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