Seudónimo
Seudónimo
13-01-2016
Mathematics
contestada
80 is 40 percent of what number?
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Аноним
Аноним
13-01-2016
0.4a=80 ----- ----- 0.4 0.4 a=200 Where a is the number times 40%, which is 0.4 in decimal form.
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Billymkhoi
Billymkhoi
13-01-2016
We have an equation: 80/?= 40/100
Cross multiply:
40*?= 80*100
⇒ ?= 80*100/40= 200
80 is 40% of 200
~
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