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(1-0.2)x.25+0.10(1-0.2)x0.25+7 how do I salve this
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(1-0.2)x.25+0.10(1-0.2)x0.25+7 how do I salve this

User GSala
by
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1 Answer

4 votes

Answer:

Explanation:

(1-0.2)×.25+0.10(1-0.2)×0.25+7

=(1-0.2)×0.25[1+0.10]+7

=(0.8)×0.25[1.10]+7

=0.200×1.10+7

=0.2×1.1+7

=0.22+7

=7.22

or

(1-0.2)×.25+0.10(1-0.2)×0.25+7

=0.25-0.050+0.8×0.025+7

=0.25-0.05+0.0200+7

=7.27-0.05

=7.22

User Kurt Ludikovsky
by
5.0k points
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