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February 28, 2015

February 28, 2015

Posted by **narmin** on Thursday, September 24, 2009 at 3:02pm.

a. temperature formula

solve for F: K=5/9(F-32)+273

b. annual interest rate

solve for R: A=P+Prt

- algebra -
**DrBob222**, Thursday, September 24, 2009 at 3:18pmK=5/9(F-32)+273

K-273=5/9(F-32)

9(K-273)=5(F-32)

9K-2457=5F-160

9K-2457+160=5F

(9K-2297)/5 = F

A=P + Prt

A-P=Prt

(A-P)/Pt = r

Check my work carefully.

- algebra -
**pizza**, Tuesday, September 9, 2014 at 5:35pm$67×20=36 (x÷80)

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