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Catholic book chapter 7 quiz

A man sells a book at a profit of 20%.if he had bought it at 20% less and sold it for rs 18 less,he would have gained 25%.what is the cost price of the book

Please help me to solve this equation.

A certain substance X has a normal freezing point of 2.2°C and a molal freezing point depression constant =Kf2.65·°C·kgmol−1 . Calculate the freezing point of a solution...

Basically I have to use the equation: d=35-28cos (pi/6.2)t To find out when the depth of ocean is at 3.5ft and when it's at 30ft. provided d=depth of water t=time in hours with...

Im writing an Classical Argumentative essay, for my college english class, and was wondering if it is okay to begin with or make my "hook" be lines from a poem?

422. mg of an unknown protein are dissolved in enough solvent to make 5.00mL of solution. The osmotic pressure of this solution is measured to be 0.328 atm at 25.0°C. Calculate...

Please I need to answer this equation, i can't solve it

just don't get it, any help is greatly appreciated

What is the answer and what equation did you use?

What is the free body diagram or the forces acting on the ball

9500 is invested, part of the money at 11%and part at 7% for a certain year, the total yield is 901.00. how much was invested at each rate.

For this problem, I know how to solve it, but can't set it up. I have x+y=3000 0.70x+0.35y=(0.58)(300) but it's quite right. Thanks! A silversmith has two alloys,...

Two debts ---- the first of $800 due six months ago and the second of $1400 borrowed one year ago for a term of three years at 6.5% compounded annually ---- are to be replaced by a single payment...

John and Barry are pulling on a fence post with ropes while their friend Pat uses a chainsaw to share it at ground level. John applies a force of 75.0 N [40 degrees] on one rope while Barry applies...

A 2.6 KG sled is pulled along a horizontal surface at a constant velocity to the south. If the coalfish of friction between the surfaces is 0.17, determine the force of friction acting on the...

if a satellite orbits the earth with a period of 120 minutes, determine its altitude above the earths surface. Show all work and answer to three significant digits please.

Marco owed his father $150 and began paying him back $20 at the end of each week, beginning November 1. Joni owed her father $130 and began paying him back $15 at the end of each week, beginning on...

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