Explanation

(a) \(2x + 5y = \frac{13}{2} \implies 4x + 10y = 13 ... (1)\)

\(5x - 2y = 9 ... (2)\)

\((2) \times 5 : 25x - 10y = 45 ... (2a)\)

\((1) + (2a) : 29x = 58 \implies x = 2\)

\(4(2) + 10y = 13 \implies 10y = 13 - 8 = 5\)

\(y = \frac{5}{10} = 0.5\)

(b) \(\log_{10} (2x + 1) - \log_{10} (3x - 2) = 1\)

\(\log_{10} (\frac{2x + 1}{3x - 2}) = 1\)

\(\frac{2x + 1}{3x - 2} = 10^{1} = 10\)

\(2x + 1 = 10(3x - 2) \implies 2x + 1 = 30x - 20\)

\(21 = 28x \implies x = \frac{3}{4}\)

Correct Answer: D) #27 280

Correct Answer: D. metaphor

Correct Answer: D. Istikhara

Explanation

(a) The problems of barter include:

• Double co-incidence of wants;
• No fixed rate of interest;
• Wastage of time and effort;
• Indivisibility of goods;
• Discouraging borrowing and lending/no deferred payment;
• Difficulty in storing wealth;
• Bulkiness of goods;
• Measurement of value of goods.

(b) Benefits Domingo could derive by using computers in the conduct of his business:

• He could use a computer to communicate with his suppliers and customers through email faster;
• The use of spread sheet and accounting software could help him to keep his accounts better than doing it manually (accurate and reliable data);
• He could search for cars available for sale as well as potential buyers through the internet on the computer;
• The use of computer reduces the time and cost of doing business;
• Information about suppliers, debtors and potential customers could be stored in the computer for ease of retrieval;
• Diagnostics of the state of vehicles he purchases could be done by using a computer system/ to detect problem;
• He could use a computer to transfer funds as well as know the state of his accounts;
• He could use a computer to secure his premises through the use of close circuit television (CCTV);
• He could use a computer to monitor his vehicles with the help of tracking device installed in the vehicle in case of theft;
• He could use computer for confidentiality as access to information is not possible without the knowledge of the password;
• Data processed on the computer are more accurate and reliable than the one manually done

Correct Answer: A. interspersing humour with seious narration

Correct Answer: C. 875 C.E.

Correct Answer: (c) all the nutrients in the correct proportion.

Correct Answer: D. proximate cause

Explanation

Proximate cause is a key principle of insurance and is concerned with how the loss or damage actually occurred and whether it is indeed as a result of an insured peril. Active, direct, and efficient cause of loss in insurance that sets in motion an unbroken chain of events which bring about damage, destruction, or injury without the intervention of a new and independent force.

Correct Answer: A. indeed the creator of all