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A clothing manufacturer purchased 65 yd of cotton and 85 yd of wool for a total cost of \$1,155. Another purchase, at the same prices, included 70 yd of cotton and 15 yd of wool for a total cost of...

The formula for the pH of a solution of hydronium ions given by the logarithmic equation pH=-log[H3O^+], where [H30^+] is the hydronium ion concentration. Find the hydronium ion [H3O^+]...

Under certain conditions, the number of bacteria present in a colony is approximated by f(t)=Aoe^0.029t, where t is in minutes. If Ao=2,200,000, find the number of bacteria present at 5 minutes, 10...

If Tanisha has \$1,000 to invest at 8% compounded quarterly, how long will it be before she has \$2,050? If the compounding is continuous, how long will it be?   Quarterly- __ years to...

If Tanisha has \$1,000 to invest at 7% compounded semiannually, how long will it be before she has \$1,850? If the compounding is continuous, how long will it be?

Mrs. West is 14 years younger than her aunt. If Mrs. West's age in years is as much below 60 as her aunt's age is over 40, how old is each?   I can understand the first sentence and end...