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The cost of living last year went up 7%. Fortunately, Alice Swanson got a 7% raise in her salary from last year. This year she's earning $42,805. How much did she make last year?

Sagot :

a386
Let x represent the money she earned last year.
[tex]42805=x+.07x\\ 42805=1.07x\\ \frac{42805}{1.07} = \frac{1.07x}{1.07} \\40,004.67=x[/tex]
Yurvaz
100% - 42,805$ - her salary now.
7% - ? $ - her raise.
Decide by proportion:
1) [tex] \frac{42,805*7}{100} [/tex]=2,99635$ - 7% of raise.
2) 42,805-2,99635=39,80865$ - she did make last year.
Reply: 39,80865$ she did make last year.
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