If you would like to know which one of the options is better to buy, you can calculate this using the following steps:
3 sandwiches ... $4.95
1 sandwich ... $x = ?
______________________
3 * x = 1 * 4.95 /3
x = 4.95 / 3 = $1.65
4 sandwiches ... $6.72
1 sandwich ... $y = ?
______________________
4 * y = 1 * 6.72 /4
y = 6.72 / 4 = $1.68
Result: You should buy sandwiches from the first option ($1.65 < $1.68 per unit).
Answer:
x=2
Step-by-step explanation:
first divide by 3 left and right, then you get:
x+1 = 3
then subtract 1 left and right, then you get:
x=2
so, solutions appear by simplifying
Answer:
Assume a business man banks an amount of principle P, for n years at a compound interest of r%. His accumulated amount after n years will be given by formula:
- P is the principle
- r is the interest
- n is the period
Note that compound interest borrows a hint from the geometric progression series.
- for 5 years, at rate of 10% with principle of 5000;
Accumulated = 5000(1 + 10%)^5
Accumulated = 5000(1 + 0.1)^5
Accumulated = 5000 × 1.61
Accumulated = 8052.55 /=