Good question!
The earth is 6378 kilometers in radius and we want circumference.
Circumference = 2*pi*r
Circumference = 2*pi(6378 km)
= 40,074.16 km (1000 m/1 km)(100 cm/1 m)(1 inch/2.54 centimeters)
= 1.58 X 109 inches/7.5 inch pencils
= 2.11 X 108 pencils fitting around earth
============================(that's 211 million pencils! )
x= # of pencils that cost .45 y= # of pencils that cost .65 So now you need 2 equations for 2 variables: 15= x+y This equation is saying: 15 total pencils bought= pencils that cost .45 + pencils that cost .65 The second equation is: 7.75= .45x + .65y This equation is saying: total money spent (7.75)= price of pencils (.45) times # of pencils + price of pencils (.65) times # of pencils Then you combine these two equations, but first switch around the first equation to look like: y=15-x Then you replace the "y" in the second equation by putting in what y equals the first equation: 7.75= .45x + .65(15-x) Then distribute and solve for x: x = 10 Then enter 10 into the first equation for x to figure out y: y= 15- 10 y= 5 So your answer is-- Ray bought 10 pencils that cost .45 and 5 pencils that cost .65
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16 1-inch cubes
2.54 cm equal 1 inch
There are 16 sixteenths in an inch, and in any whole in general.
The height of typical pencil is about 15cm. Laid end to end you would need 66,791,933 to circle the Earth at the equator.
In a 48 inch desk, there is usually a on the top of the desk or inside of the desk for pencils. The amount of pencils that will fit normally in this slot is probably 4 or 5, depending on their size.
it is almost exactly one mile around. You can check it using the ruler tool on Google Earth
A gross of pencils is 144 pencils.
12 of them
A gross is 144. So you would have 144 pencils.
You just used many pencils in a sentence.
There will be: (3*10)-25 = 5 pencils left over
It is Spanish and it means, 'How many pencils do you have?'.
15 pens. 5 pencils.
It can make 127,000 pencils
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