applications involving quadratic

Abby rows 10 km upstream and 10 km back in a total time of 3 hr. The speed of the river is 5km/h. Find Abby’s speed in still water.

  1. 👍 0
  2. 👎 0
  3. 👁 165
  1. she went the same distance.

    (v+5)3=(v-5)10)

    3v+15=10v-50
    7v=65
    v=65/7 km/hr

    What does this have to do with quadratics?

  2. thats what my mathbook said. That why I needed help thank you bobpursley.

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. Math

    Abby plans to purchase pencils as prizes for the school fair. The pencils cost $11.52 per case or can be purchased individually. With her available money, Abby can either buy ten cases of pencils and eight individual pencils or

    asked by Anonymous on January 16, 2016
  2. ALGEBRA

    A BOATMAN ROWS TO A PLACE 48KM DISTANT AND BACK IN 14 HOURS; HE FINDS HE CAN ROW 4KM WITH THE STREAM IN THE SAME TIME AS 3KM AGAINST THE STREAM. FIND THE RATE OF THE STREAM?

    asked by megan on June 20, 2015
  3. math

    in march, the savings of oliver, asia, hassan, and abby was $1440. in april, their savings became equaly when oliver's savings is doubled, asia's savings is decreased by $30, abby's savings is increased by $46, and hassan remained

    asked by Anonymous on December 2, 2011
  4. College Algebra

    Cassius drives his boat upstream for 30 minutes. It takes him 15 minutes to return downstream. His speed going upstream is two miles per hour slower than his speed going down stream. Find his upstream and downstream speed.

    asked by Lauren on September 3, 2017
  1. Math

    Toni rows a boat 4.5 km/h upstream and then turns around and rows 5.5 km/h back downstream to her starting point. If her total rowing time is 48 min, for how long does she row upstream? you can express your answer to the nearest

    asked by Angie on January 17, 2009
  2. math

    On Abby Ellen's graduation from law school, Abby's uncle, Bull Brady, promised her a gift of $24,000 or $2,400 every quarter for the next 4 years after graduating from law school. If the money could be invested at 6% compounded

    asked by Maggie Hopkins on April 6, 2015
  3. Math- brain teasers!

    okay so i was given a worksheet with 15 word problems. i couldn't solve 2 so if you could help me out it would be good.. If you ask Catwoman how many cats she has, she answers with the riddle, 'five-sixths of my cats plus seven.'

    asked by Brennan on October 19, 2008
  4. Math/ Ratios

    Abby and Hakeem had the same number of CDs. After Abby gave away 23 Cds and Hakeem sold 7 Cds the ratio became 3:4. How many CDs did they all have together? I can't figure out because ratios have never been something I was good

    asked by Catania on May 20, 2016
  1. UPSTREAM

    THIS EXURSION WITH A BOAT TRAVEL 35KM UPSTREAM AND THEN BACK AGAIN IN 4 H 48 MINUTRE. iF THE SPEED OF THE BOAT I5 K,/H, WHAT IS THE SPEED OF THE CURRENT? Let v be the speed of the current. The boat's speed upstream (relative to

    asked by CINDY on December 21, 2006
  2. intermediate algebra

    Rowing. Abby rows 10km. upstream and 10km. back in a total time of three hours. The speed of the river is 5km./h. Find Abby's speed in still water.

    asked by ROCKY on August 2, 2011
  3. *repost* - Grade 11 math

    Word problem: Wes saw fireworks at 28 degrees; Abby (who was standing 20 m away from him) saw the same fireworks at a 40 degree angle. Where was Abby standing? (The answer is 61.8m, but I don't know how to figure it out or sketch

    asked by Iza on December 17, 2014
  4. Algebra

    A boy can row a boat at a constant rate of 5 mi/hr in still water. He rows upstream for 19 minutes and then rows downstream, returning to his starting point in another 13 minutes. What is the rate of the current? What is the total

    asked by Kaley on September 12, 2011

You can view more similar questions or ask a new question.