0:35 – A cashier has 20 bills, all of which are $10 and $20 bills. The total value of money is $220. How many of each type does the cashier have?

4:40 – Riley flew her ultra-light plane to a nearby town against a head wind of 15 km/hr in 2 hr 20 min. the return trip under the same wind conditions took 1 hr 24 min. Find the plane’s airspeed and the distance to the nearby town.

9:32 – A car radiator is filled with 10 L of 40% antifreeze solution. How many liters must be taken out and replaced by an 80% antifreeze solution to leave the radiator with 10L of 60% antifreeze solution?

12:22 – Solution A is 50% hydrochloric acid, while solution B is 75% hydrochloric acid. How many liters of each solution should be used to make 100 liters of a solution which is 60% hydrochloric acid?

15:23 – Miriem can paddle her canoe 15 miles downstream in 2hrs. It takes her 3 hours to come back upstream. What is the rate of the current?

✿If you need help with any problem just let me know!✿

THERE IS A VERY EASY METHOD TO SOLVE QUADRATIC EQUATIONS. IT IS REALLY EASY AND FAST METHOD. IT IS FOR BEGINNERS SO I HAVE TAKEN A VERY EASY EXAMPLE TO EXPLAIN IT PROPERLY. IN THE NEXT PART I WILL DISCUSS SOME HIGH LEVEL QUESTIONS. FOR MORE VIDEOS DO SUBSCRIBE THE CHANNEL. ALSO WATCH: FASTEST METHOD…

https://bit.ly/PG_Patreon – Help me make these videos by supporting me on Patreon! https://lem.ma/LA – Linear Algebra on Lemma https://lem.ma/prep – Complete SAT Math Prep http://bit.ly/ITCYTNew – My Tensor Calculus Textbook

Consider the following x=e^4t, y=t+9 (a) Eliminate the parameter to find a Cartesian equation of the curve(b) Sketch the curve and indicate with an arrow the direction in which the curve is traced as the parameter increases

Its a little shaky to hear that what we are being taught is not completely correct and the worst of all is that we are least bothered to seek for its logical explanation. This channel attempts to help students approach concepts logically rather than just memorizing without a cause. “Cramming is not the key to…