Assignment 1 Sept. 2016.doc

1

Portmore Community College CSEC Mathematics – Assignment 1 Due Date: October 13, 2016 Answer all questions on FOLDER LEAVES. Show all necessary working to obtain full marks. 1. Using a calculator, or otherwise, calculate the following giving your answer as a fraction in its lowest term:

2

a.

1 3 4 -2 8 4 1 1 2

[3 marks]

�1 3� 5 1 2 - �+ � c. � �4 8� 6 3

1 2 1 b. 3 + 2 �1 2 5 3

[3 marks]

[4 marks]

2. Using a calculator, or otherwise, compute the value of: a. 7.2 + 12.96 �1.875

[3 marks]

b. 1.2 �(1.31)2 – 2.67 �4.1

[4 marks]

3

3. Express the number 2703.6491: a. correct to the nearest whole number

[1 mark]

b. correct to one decimal place

[1 mark]

c. correct to two significant figures

[1 mark]

d. correct to the nearest thousandth

[1 mark]

e. in standard form, correct to three significant figure

[2 mark]

4

1 2 of his money on lunch. Of the remainder, he spent on transportation and saves 8 5 what is left.

4. Paul spent

a. Calculate the fraction of his money spent on transportation.

[2 marks]

b. Determine the fraction of his money that he saved.

[2 marks]

5. Apple juice is sold in boxes of three different capacity. Box Capacity

Selling Price

5

250 ml

$2.85

300 ml

$3.50

350 ml

$4.25

Which size of apple juice is the most cost-effective buy? Justify your answer.

END OF ASSIGNMENT 1 – TOTAL 30 MARKS

[3 marks]