Increase=higher-lower=386-313=73
percent increase=increase/original times 100=73/313 times 100=0.23322683706070287539936102236422 times 100=23.322683706070287539936102236422
so it is about 23% increase
the increase is 73
After 10 years, there will have been 120 deposits. The last one earns 12%/12 = 1% interest, so is mutipied by 1.01. The one before is multiplied by 1.01². Overall, you have the sum of a geometric series of 120 terms with first term 10.10 and common ratio 1.01. That sum is given by the general formula
Sn = a1·(r^n -1)/(r -1)
S120 = 10.10(1.01^120 -1)/(1.01 -1)
S120 = 1010·2.30038689 ≈ 2323
At the end of the 10th year (before the first deposit of the 11th year), the account balance will be
$2,323
Answer:
914 m^2 to the nearest whole number.
Step-by-step explanation:
The area of the hexagonal base is made up of 6 congruent triangles so its area = 6 * 1/2 base * height
= 6 * 1/2 * 12 * 6√3
= 216√3 m^2.
The area of each slanting triangle = 6 * 15 m^2 so the lateral area of the pyramid
= 6*6*15 = 540 m^2
Total surface area = 540 + 216√3
= 914.12 m^2.
Answer
Decimal is a term that describes the base-10 number system, probably the most commonly used number system. The decimal number system consists of ten single- digit numbers: 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9. The number after 9 is 10. The number after 19 is 20 and so forth. Additional powers of 10 require the addition of another positional digit.
