Question

dhatradiya can you check my answer Please!

Answer 1

http://imageshack.us/photo/my-images/43/10460736.jpg/

Answer 2

outer volume = 6pi * 160=960pi
inner volum = 5pi*160 = 800pi
total = 960pi-800pi= 160pi

Answer 3

yes hold on. let me see

Answer 4

ty

Answer 5

okay the volume is 160 pi cubic centimeters. that is correct. next you have to find the weight.

Answer 6

the weight = 160pi*7.7+?

Answer 7

right, the weight of each cylinder is 160 pi *7.7 grams.

Answer 8

after find the weigh time 200 pipes?

Answer 9

you must always keep track of what units you are measuring. simply saying weight is 160 pi * 7.7 does not convey any information. You have to tell me where it is grams, or kgs or pounds or ounces

Answer 10

right so you multiply that by 200 to get the total weight of the 200 pipes. Keep in mind that her truck can only handle quarter tonne of weight

Answer 11

are you sure you multiplied correctly? 160 * pi * 7.7 cannot be such a large number

Answer 12

160pi*7.7=3,870,442149grams
3,870,442149grams*200=774,088,4298
1kg=1000g
than: 774,088,4298
/1000=?

Answer 13

=774kg

Answer 14

right that is correct.

Answer 15

so the second comma was actually a decimal point? 774,088,4298 means the number 7740884298
you should write 774088.4298

Answer 16

oh yeah ,I forgot thank for remind me

Answer 17

anyway, the answer you got is correct. the 200 pipes weight 774 kgs
her truck can handle only 250 kgs at a time. so she needs to make 4 trips

Answer 18

thank again

Answer 19

you are welcome