Please help me in answering questions  in the attached assignment. 

 

 

Please remember to show ALL of your work on every problem. Read the basic
rules below for showing work, following standard mathematical practice
BEFORE you start working on the exam:
a) Each step should show the complete expression or equation rather than a piece of
it.
b) Each new step should follow logically from the previous step, following rules of
algebra.
c) Each new step should be beneath the previous step.
d) The equal sign, =, should only connect equal numbers or expressions. 1) Simplify the following expression: 4 9 3 7 6 2 5 2) Simplify the following expression: 48 8 2 4 7 2 Page 2
3) Simplify the following expression: 5 11 5 5 6 12 3 12 4) Simplify the following expression: 4 19 2 3 1 Page 3
5) Evaluate the following expression when x4 and y 5 : 2 x3 3 y 2 6) Evaluate the following expression when 3x 2 y 2
2y x 2 and y 6 : Page 4
7) An airport parking lot is a rectangle 7
1
10 of a mile wide and 3
2
4 of a mile long. How much fencing is needed to enclose the lot? Show work using fraction arithmetic, and include units
with your answer. 8) Find the area of the rectangular parking lot described in question #7. Show work using
fraction arithmetic, and include units with your answer. Page 5
9) A recent study has shown that roughly 35 out of 80 residents of a certain city have high
cholesterol. If the population of the city is 12,452 people, about how many people have high
cholesterol? Set up and solve a proportion to answer the question. Round your answer to the
nearest whole number and include units with your answer. 10) The nutritional chart on the side of a cereal box states that there are 243 calories in a 2
3 -cup serving of the cereal. Eric regularly eats 2 cups of that cereal for breakfast. Use a proportion to
determine the number of calories in 2 cups of that cereal. Include units with your final answer. Page 6
11) The original price of a computer was $899.00. Eleanor had a 15% off coupon which she
was able to use to make the purchase. If sales tax of 6.5% was added after the discount was
taken, how much did Eleanor pay altogether for the computer? Round your answer to the nearest
cent if necessary and include units. 12) Jason borrowed $24,599 at a rate of 14.5% simple interest to pay for a new car. If he paid
off the loan in 5 years, how much interest did Jason pay? How much did Jason pay altogether
for the car? Round your answers to the nearest cent if necessary and include units with both.
The formula for simple interest is I = PRT, where I = interest, P = principal (in this case
the amount borrowed), r = rate of interest in decimal form, and t = time in years. Page 7
13) Apply the Distributive Property to clear parentheses and then combine like terms: 5 2 x 1 3 7 x 2 14) Apply the Distributive Property to clear parentheses and then combine like terms: 3 4 x 1 2 5 x 4 Page 8 15) Apply the Distributive Property to clear parentheses and then combine like terms: 3
2
8x 12 6 x 9 4
3

• 1492577499-Math 009_Week 4 Assignment.docx

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Status NEW Posted 19 Apr 2017 04:04 AM My Price 8.00

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