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1) A student inherits $100,000and decides to invest half.The student has two investments to choose from; the first is a low risk investment that pays an average of 4% simple interest annually, the second has much more risk but averages 9% simple interest per year. If the student hopes to earn $3,0003 a year in interest, how much should be deposited in each investment?
2) A large solar heating panel requires 120 gallons of a fluid that is 3030% antifreeze. The fluid comes in either a 50% solution or a 20% solution. How many gallons of each should be used to prepare the 120-gallon solution?
3) British sterling silver is a copper-silver alloy that is 7.5% copper by weight.
How many grams of pure copper and how many grams of British sterling silver should be used to prepare 200 grams of a copper-silver alloy that is 10% copper by weight? (round to the nearest tenth)
4) For a particular linear function f(x)=mx+b f(-2)=11 and f(3)=-9 FIND m and b
Consider the k-out-of-n system (info on the system: A system consists of n independent components. Each component functions with probability p
A high school graduating class is made up of 360 students. There are 118 more girls than boys . How many boys are in the class?
A garden table and a bench cost $600 combined. The cost of the garden table is three times the cost of the bench. What is the cost of the bench?
a bus driver claims that no more than 40 of all bus drivers run traffic lights on occasion.nbsp300 bus drivers were
A bookstore sells a total $4500 worth of math books, $3000 worth of science books, and $1200 worth of history books. the book store also sells several other types of books. the total sales are $11,000.
Records at a high school indicate that each year for the past five years, 120 of the 1,500 students were absent on the first day of hunting season
Find the firing angle in degrees of a projectile fired at an initial velocity of 100 feet per second so that it strikes the ground 312.5 feet from the firing point.
What is the probability that a part that starts in Process A will make it to shipping in two steps? Show the values that you are combining to solve this.
If 80% of the connectors are kept dry and 205 are wet, what proportion of the connectors fail during the warrnty period?
Let's define the standard unit vectors u = [1,0] and v = [0,1]. Show that the signed area A(u,v) = +1, and that A(v,u) = -1.
Find, in the form of an in?nite series, the solution to the heat conduction problem statedat the start of the question.
A man ordered 3 times a many boxes of ballpoint pens as boxes of felt-tip pens. Ballpoint pens cost $4.37 per box. Felt-tip cost $3.44 per box. Total cost is $82.75. How many boxes of each type of pen did he buy?
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