Algebra Answers

Multiply the following using a diagrammatical representation:
1. 2/3 *6/8
2. 3/4 * 4/5
3. 3/5 * 2/3
4. 3/4 * 2/2

Which of the following algebraic expressions are rational: a.) x^2-3x+4x=8/4, b.) 1/(3x) + 4x/6 =1, c.) 5/x +x/9=2/4, d.) x^2 -3x+4x=0, e.) 3+ (4x/6)=1

I need to find answers to my surfs Up escape

2. Lara must enter a 5 digit code in order to access the mansion’s safe to retrieve her parent’s will. How many codes must Lara punch if . . .

(a) There are no restrictions?

(b) There are no repeats?

(c) The code ends with an even number?

(d) The first digit is 2?

(e) The code is made up of only non-repeating odd numbers?

1. A group of 40 first-year business students at a small university was surveyed with the
following results.
• 19 students read Business Week;
• 18 read the Wall Street Journal;
• 20 Read Fortune;
• 13 read Business Week and the Wall Street Journal;
• 11 read the Wall Street Journal and Fortune;
• 13 read Business Week and Fortune;
• 9 read all three magazines

(a) Please represent this information using a Venn Diagram


(b) How many students read. . .

i. None of these publications?

ii. Exactly 2 of these publications?

iii. At least 2 of these publications?

iv. Fortune or Business Week, but not the Wall Street Journal

v. Fortune and Business Week, but not the Wall Street Journal?

vi. Don’t read the Wall Street Journal?

vii. Only read Fortune?

Store A is selling 10rolls of toilet paper for R35.50,while store B is selling 32rolls for R98.00. Write down each unit rate to the nearest cent and indicate the one that is better deal

Wakaba buys some granola bars at $0.50 each and energy drinks $2 each for a group hike. She buys twice as many granola bars as she does drinks. If she spends $27 in total how many granola bars and drinks does she buy? Let x= the number of drinks

Solve each proportion
1.13/49=26/7x
2. b+1/b-1=5/6
3. b-1/b-1=5/6

a metal cylinder has the mass of 5.20 the density of the cylinder is 22.0 g ml what is the volume