Question about SoftMath Algebrator - Algebra Homework Solver (689076614429)

# A library expansion, begun in 2002, was expected to cost \$109 million. By 2006, library officials estimate the cost would be \$42 million over budget. By what percent did the actual cost exceed the initial estimate?

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If you wanted to buy a shirt that was \$18.00 with 30%off
you would do 18 * 30% = 5.4 off the price.

Knowing that how do you find the % of something?
Take the cost and multiply by %'s till you get close.
Ex: 109 * 50%(means 1/2 of the value) = 54.5 million
you need to find a lower % that gets you closer to 42 million.

Posted on Mar 31, 2015

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### Estimate the product of 109*129= by rounding

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(actual 109 x 129 = 14,061)

close...

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