Question

1) Ina Crespo rowed 10.5 miles down the Habashabee River in 1.5 ?hours, but the return trip took her 3.5 hours. Find the rate Ina rows in still water and the rate of the current. Let x represent the rate Ina can row in still water and let y represent the rate of the current.

d equals= r times • t

Downstream x plus+y

Upstream. x minus?y

Ina can row nothing mph in still water.

2) Gabe? Amodeo, a nuclear? physicist, needs 80 liters of a 30% acid solution. He currently has a 20 % solution and a 60 % solution. How many liters of each does he need to make the needed 80 liters of 30% acid? solution

3) Kathi and Robert Hawn had a pottery stand at the annual Skippack Craft Fair. They sold some of their pottery at the original price of? $9.50 for each? piece, but later decreased the price of each piece by? $2. If they sold all 90 pieces and took in $719?, find how many pieces they sold at the original price and how many pieces they sold at the reduced price.

Answer 1