Last week a machine produced 4,416 candy bar wrappers. The machine produces 46 wrappers per hour. How many hours was the machine operating last week?

1 Answer
Johnson Z.
Apr 16, 2016

#96# hours

Explanation:

If a machine produced #4416# candy bar wrappers, and you know that its rate of production is #46# wrappers per hour, then divide #4416# by #46# to determine how many hours the machine operated for.

#4416color(white)(i)"wrappers"-:(46color(white)(i)"wrappers")/"hour"#

#=4416color(white)(i)"wrappers"xx"hour"/(46color(white)(i)"wrappers")#

The unit, "wrappers," cancels out.

#=4416color(white)(i)color(red)cancelcolor(black)("wrappers")xx"hour"/(46color(white)(i)color(red)cancelcolor(black)("wrappers"))#

#=4416xx"hour"/46#

#=(4416color(white)(i)"hour")/46#

#=(46(96color(white)(i)"hour"))/(46(1))#

#=(color(red)cancelcolor(black)(46)(96color(white)(i)"hour"))/(color(red)cancelcolor(black)(46)(1))#

#=color(green)(|bar(ul(color(white)(a/a)96color(white)(i)"hour"color(white)(a/a)|)))#

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