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Mathematics 20 Online
OpenStudy (anonymous):

Somebody can help me with the question #1 please. My answer is ( c. 63x7 )

OpenStudy (anonymous):

geerky42 (geerky42):

yep it is C.

OpenStudy (anonymous):

Thanks geerky42 for your help

jimthompson5910 (jim_thompson5910):

The answer for #1 isn't C

OpenStudy (anonymous):

So is D

jimthompson5910 (jim_thompson5910):

correct

OpenStudy (anonymous):

Can you explain me why please

geerky42 (geerky42):

agree. why? i am positive it's C.

jimthompson5910 (jim_thompson5910):

63 divided by 7 = 9 it takes 9 minutes to make 63 shirts total

geerky42 (geerky42):

problem already stated it took them 7 minutes to make a shirt. you don't make sense.

jimthompson5910 (jim_thompson5910):

so (time per shirt)*(total time) = total number of shirts (7 min/1 shirt)*(9 min) = 63 shirts 7*9 = 63 63 =63

jimthompson5910 (jim_thompson5910):

that's per shirt

jimthompson5910 (jim_thompson5910):

the machine made 63 shirts total

geerky42 (geerky42):

i mean.. one shirt for 7 min. it's impossible to make 63 shirts in 9 min...

jimthompson5910 (jim_thompson5910):

oh oops (7 min/1 shirt)*(9 min) makes no sense lol, the units aren't cancelling like I want them to so yeah it is (7 min/1 shirt)*(63 shirts) = 7*63 my bad

geerky42 (geerky42):

that ok lol

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