Trisan

Sally invested a total of $4500, some at 9% per year and the rest at 6% per year. The return from the 9% investment exceeds that from the 6% investment by $180. How much did she invest at each rate?

16 years ago

With the wind, a jet can fly 2500 km in 2 hours and 30 minutes. Against the wind, it can fly only 2000 km in the same time. Find the rate of the jet if the rate of the jet if the rate of the wind is 100 km/hr. Please Show All Work!

16 years ago

How many liters of water must be added to 8 liters of a 40% acid solution to obtain a 10% acid solution? Please Show All Work!

16 years ago

How much pure acid must be added to 6 milliliters of a 5% acid solution to produce a 40% acid solution? Please Show All Work!

16 years ago

Joan has 40 liters of a 25% solution. How many liters of a 60% solution should she add to make a 30% solution?

16 years ago

How much wat must be evaporated from a 65-gallon tank of 40% salt solution in order to obtain an 80% salt solution?

16 years ago

Sam invested $7000, part at 7% and the rest at 11%. If his total return for one year was $690, how much was invested at each rate?

16 years ago

A boat travels 60 km upstream and back again in 8 hours. If the speed of the boat is 16 km/h, what is the speed of the current?

16 years ago

simplify: x+2 ___ x to the second power + x-2 _____ 2x X+2 divided by x to the second power plus x-2 divided by 2x

16 years ago

Simplify: 2x+5 + 2x-5 ____ ______ 4x raised 10x to the second power

16 years ago

Simplify: 4s raised to the negative 2 power - (4t)raised to the -2 power

16 years ago

Simplify: 2x+5/4x^2 + 2x-5/10x

16 years ago

Simplify: 4s^-2-(4t)^-2

16 years ago

Simplify: (a-b)/(a^-1-b^-1)

16 years ago

Simplify: 2x+5/4x^2+2x-5/10x

16 years ago

Simplify: 1/y^2-y-2+1/y^2+y

16 years ago

Simplify: 4s^-2-(4t)^-2

16 years ago

Simplify: 1/u^2-2u-1/u^2-4

16 years ago

Simplify: x+2/x^2+x-2/2x Please Show All Work!

16 years ago

Simplify cubed root of 4 times 8 to the -1 power ∛(4*8∫▒〖-1〗)

15 years ago

simplify cubed root of 375 a to the 5 power

15 years ago

Simplify cubed root of 135

15 years ago

Solve. Square root of 3x+4=x

15 years ago

Solve. Square root of 3x+4=x BobPursely can you please show me the work

15 years ago

Solve the problem. Round answer to the nearest hundredth. Please Show All Work! Suppose a pool has dimensions 12 ft. by 30 ft. A sidewalk of uniform width around the pool has an area of 200 square feet. What is the width of the walkway?

15 years ago

Solve the problem. Round the answer to the nearest hundredth. Please Show All Work! A garden is currently 4 meters wide and 7 meters long. If the area of the garden is to be doubled by increasing the width and length by the same number of meters, find the...

15 years ago

Solve by using the quadratic formula. Please Show All Work! 4x(x+3)=15

15 years ago

Solve the equation using the method that seems easiest. Please Show All Work! x^2+12=0

15 years ago

Solve the problem using the "z" method. Please Show All Work! u^4+6=-5u^2

15 years ago

Two cards are drawn at the same time from a 52-card deck. Dind the probability of each event. a) both cards are jacks b) both cards are sixes c) eith both cards are jacks or both cards are sixes PLEASE SHOW ALL WORK!

15 years ago

A coin is tossed three times. Find the probability of each event. a) at least two tosses come up tails. b) at least one toss comes up heads. PLEASE SHOW ALL WORK!

15 years ago

From a 52-card deck a card is drawn and then replaced. After the deck is shuffled, a second card is drawn. Find the probability of each event. a) both cards are clubs. PLEASE SHOW ALL WORK!

15 years ago

A boat travels 60 km upstream and back again in 8 hours. If the speed of the boat is 16 km/h, what is the speed of the current? Please Show Work

16 years ago

No the question only says to simplify and the problem was 4s^-2-(4t)^-2

16 years ago

I think it would be 5, 10, and 1 but i am not sure hope this helps

16 years ago

this is not the answer that i am getting i am getting 2y-2/y(y+1)(y-2)Can you show me what is wrong or all of the work?

16 years ago

I do not understand your reasoninging what is the answer and how did you get it?

16 years ago

Two is less than four three is less than one-hundred zero is less than three I think this is the answer but i am not exactly sure what you are supposed to do

16 years ago

could you please do the problem and show your work. thanks

16 years ago

Can you show me the work because i still cant figure it out.

15 years ago

I am sorry but i do not even know how to start the problem that is why i asked for someone to answer it and show work so that i maybe able to better understand it

15 years ago