Dupe's present age = 14 years
Olu's present age = 11 years
Explanation:
- Let Dupe's age be x. Let Olu's age be y. Since their ages add up to 25 years, x + y = 25
- Eight years ago Dupe's age was double that of Olu's age. Solving by simultaneous equations. Four methods are Elimination Method, Graphical Method, Substitution Method, and Matrix Method. Let us try out Elimination method for solving a pair of simultaneous linear equations that reduces one equation to one that has only a single variable. Once this has been done, the solution is the same as that for when one line was vertical or parallel.
- Therefore, eight years ago, Dupe's age was 6 and Olu's age was 3 so that x=2y becomes, 6=2*3. Eight years hence, x=6+8=14 and y=3+8=11. That makes, x or Dupe's age as 14 years and y or Olu's age as 11 years.
Answer:
d) variability
Explanation:
Variability is the quality of a service that does not follow a fixed, or predictable pattern, following instead a changing (or variable), or unpredictable pattern.
Seasonality is a type of variability that occurs when a business is subject to very rigid time constraints: in some periods of time it booms, and in other periods, it busts.
Alex's business is seasonal because it only becomes profitable during the summer months, while the other three seasons represent a net loss for him.
Answer:
Zumba classes sell all 20 participant spots at a price of $4.50 each. When the instructor raised the prices to $5.50, 10 people attended the class. From the midpoint method, the price elasticity of demand for Zumba is:
0.286
Explanation:
20 at $4.50= $90
10 at $5.50= $55
price elasticity= change in quantity demand/ change in price
20-10= 10 change in quantity demand
$90-$55= $35
10/35=0.286
Answer:
Dr. Cr.
July 19
Cash $792
Discount expense $8
Account Receivable $800
Explanation:
The term 1/15, n/30 mean there is a discount of 1% is available on the sales value, if payment is made within 15 days of sale with credit term of 30 days.
The sale of $900 was made on July 10 and discount period is until July 25.
On July 12 goods amounting $100 was returned and now the amount due from the customer is $800 ( $900 - $100 ).
The payment made on July 19 is actually in the discount period and it is eligible for the discount as it is made before July 25.
Discount = Amount due x Discount rate
Discount = $800 x 1% = $8
$792 Cash received against the sale made on July 10 and discount $8 is expensed. Total of $800 is credited from the account receivable account to eliminate it.
