A mixture of 7% disinfectant solution is to be made from 8% and 2% disinfectant solutions. How much of each solution should be used if 18 gallons of 7% solution are needed?

A mixture of 7% disinfectant solution is to be made from 8% and 2% disinfectant solutions. How much of each solution should be used if 18 gallons of 7% solution are needed?

Coffee beans worth $10.50 per pound are to be mixed with coffee beans worth $7.50 per pound to make 80 pounds of beans worth $8.25 per pound. How many pounds of each type of coffee bean should be...

Kendra has $5.25 in dimes and nickels. If she has 3 times as many dimes as nickels, how many of each coin does she have?

This is for my homework I need an explanation of how to do this. please

Julie runs 1 1/2miles in 1/3 hour.if Julie continues to run at tge same speed how many miles will she rin per hour

school hates me, and i hate school. please help me

1.)how many atoms of nickel are there in 40.08 moles ni 2.)how many moles of argon are there in 9.80 x 10^25 atoms 3.)How many moles of LIF are there in 60.09g? 4.)how many...

Hong is a software salesman. His base salary is $2400 , and he makes an additional $50 for every copy of English is Fun he sells. Let P represent his total pay (in dollars),...

i would really like an answer in 5 minutes.

On a word or powerpoint document produce a research page about the artist Picasso. Include a title, information about the artist, his portraits and cubist style of work. Include...

Research interest rates for a savings account, checking account, and money market account at different financial institutions. Note the compounding for each. How much would $10,000 be worth in each...

You are ordering photo prints online to send out to all your friends for the holidays. The first 20 prints cost 12¢ each. If you order more than 20, The price of the additional prints goes down to...

i need help fast for a math test. I am struggling

The state lottery offers to pay winnings in 25 annual payments or one lump sum, sometimes called a cash-out option. This week’s lottery has a jackpot of $30 million and a cash-out value of...

I got confused on how to complete word problems involving the Pythagorean Theorem. I understand how to do it when it is not in word problem form, but this one confused me. Please review the problem...

A swimmer completes 8 laps in 1/4hour. What is the swimmers rate per hour

what is the average rate of change between x=-2 and x=1 for the equation y=4.3x^2+2X-1?

pls help! question- three fruits: an orange, a banana and a cherry are weighed, two at a time. the orange and the banana weigh 130 g, the banana and the cherry weigh...

Please help fast!!!!!

after flying at an altitude of 500 meters, a helicopter starts to descend when its ground distance from landing pad is 11 kilometers. What is the angle of depression for this part of the flight?...