This problem confuses me because at the bottom of the problem they have a model of a triangle. The triangle is split in half. There is a dotted line down the middle labeled 4. The outside (longest)...

This problem confuses me because at the bottom of the problem they have a model of a triangle. The triangle is split in half. There is a dotted line down the middle labeled 4. The outside (longest)...

At the bottom of the question there is a model. It is a rectangle. The width is x+5 and the length is 15.

A scientist has two solutions, which she has labeled Solution A and Solution B. Each contains salt. She knows that Solution A is 70% salt and Solution B is 95% salt. She wants...

Premium gasoline sells for 78.9 cents/litre. Regular gasoline sells for 71.9 cents/litre. To boost sales, a middle octane gasoline is formed by mixing premium and regular. If 1000 litres of this middle...

how much 35% blend should he mix with the 20% blend to create a 12 oz cup of cafe au lait containing 30% steamed milk

The local apothecary is selling rocks and bags of lint to anyone foolish enough to purchase them. Lloyd bought 5 rocks and 6 bags of lint for $190. Harry bought 6 rocks and 8 bags of lint for $244...

The set up at the bottom is "infielder outs plus outfielder outs equals total outs." how many of the outs were Made by infielders and how many were made by outfielders?

At the bottom the give a set up that reads "number of regular pop plus number of diet pop equals total number of bottles". But I do not know how to put the set up with the numbers...

Hanna borrowed $250from her parents to buy a new bike. She plans to pay back the money she borrowed by giving her parents each week $15 from the money she makes after school.

a commissionaire removed 76 coins, consisting of loonies and quarters, from a parking meter. If the value of the coins was $37.75, how many coins of each were removed?

x+7=y 2x=y-10

-2x-5y=3 3x+8y=-6

x=2y+7 3x-2y=3

An animal shelter spends $2.50 per day to care for each bird and $3.50 per day to care for each cat. Henry noticed that the shelter spent $81.50 caring for birds and cats on Friday. Henry found a...

after state how many solutions there are and give a reason please explain thanks

Suppose a bank charges a monthly rate of $10 for your checking account. You can switch to a different account that charges $6 plus $.20 per check. For what number of checks is the cost of the two...

Hi there I need help modeling this problem. I cant figure out how to set it up in excel solver. Norman Bates is the General Manager of the Bates Motel. Each evening, he visits people in...

you download 2 DVDs and 10 songs for $18. Your friend downloaded 3 DVDs and 15 songs for $27.

suppose an antique car club publishes a newsletter. expenses is $.35 for printing and mailing each copy, plus $770 for research and writing. The price of the news letter is $.55 per copy. How many...

Is this or not a Linear System and why?

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