Amelia sells two types of coffee. She paid $6.25 per pound for the higher grade and $4.75 per pound for the lower grade. She decided to sell the mixture for $7 per pound. How many pounds of higher...

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Amelia sells two types of coffee. She paid $6.25 per pound for the higher grade and $4.75 per pound for the lower grade. She decided to sell the mixture for $7 per pound. How many pounds of higher...

Gwendolyn wants to mix two types of candy. She has some M&Ms that cost $1.25 per pound and some yogurt covered raisins that cost $4 per pound. She wants to make a total mixture of 15 pounds...

what are the conditions for steam cracking and catalytic cracking?

A new photocopier works 3 times as fast as an old one. When the machines work together, a university can produce all its staff manuals in 27 hours. Find the time it would take each machine, working...

how do i do that?

The admission fee at a small fair is $1.50 for children and $4.00 for adults. On a certain day, 2200 people enter the fair and $5050 is collected. How many children and how many adults attended?...

I wanna know how to set up the equation.

What's range of sec^2x +cosec^2x?, where x belongs to R.is it [0,infinite) or [4,infinite). Plz give me reason behind the answer

Whole number , interger , rational number

The carpenter needs a notch in the wood that is 4 7/8 feet from one end and 1 2/3 feet from the other end. How long does the notch need to be?

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It takes a hose 5 minutes to fill a rectangular aquarium 9 inches long, 10 inches wide, and 11 inches tall. How long will it take the same hose to fill an aquarium measuring 22 inches by 23 inches...

Your primary care doctor's office staff has determined the average wait time to see the doctor is 18 minutes, with a standard deviation of 7 minutes. Assuming a normal distribution,...

It gives us 4 choices, A.) 10 B.)14 C.)30 D.)42

The Boy Scouts of America organization has determined that 20% of supermarket customers will purchase popcorn outside the store from cub scouts for its yearly fundraising efforts. Assuming...

I have to solve this with 2 equations. How should I do that?

"Choose two tribes from our Physical Features and Culture research assignment. Write a paragraph for each tribe and each belief ( so two tribes times two beliefs equals 4 paragraphs) that answers...

You want to put a 5 inch thick layer of topsoil for a new 28 ft by 21 ft garden. The dirt store sells by the cubic yards. How many cubic yards will you need to order? The store only sells in increments...

Marlene is about to write a check for $103.48 to pay for groceries.When she subtracts the amounrlt of the check from her account balance ther will be $-28.80.Marlene wants the casier to remove some...

8th grade homework, everything else is easy except for this complic question. Please help.