Multiplication was invented to reduce the work involved in repeated addition.
... 88 + 88 + 88 + 88 = 4×88 = 352
352 passengers are carried <em>to</em> the island each day.
_____
Some questions must be answered before we can give a definite answer.
1. If the same person rides twice, are they counted twice?
2. Are passengers on the return trips (<em>from</em> the island) counted?
3. If return trip passengers are counted, is the ferry full on those trips?
4. Does every passenger to the island return the same day?
5. Does any passenger go to the island more than once per day?
<span>Compound
interest formula</span>
![A=P(1+ \frac{r}{n} )^{nt}](https://tex.z-dn.net/?f=A%3DP%281%2B%20%5Cfrac%7Br%7D%7Bn%7D%20%29%5E%7Bnt%7D%20)
Where
<span>
A= Future value
P =
the Principal (the initial amount of money)
r = annual interest rate</span>
t = time
<span>n=
number of times compounded in one t
Remark
----------------------------------------------------------------------------------
r is generally a percentage like 3%, 7% etc and
are applied in the formula as 0.03, 0.07...,
the interest is compounded generally annually (
n=1), quarterly (
n=4),
monthly (
n=12), etc...
t is in years,
In our problem:
</span>
A= 30 000
P =20 000
r = 15%=0.15
time = t = ?
n= 4
applying the formula:
![A=P(1+ \frac{r}{n} )^{nt}\\\\30,000=20,000(1+ \frac{0.15}{4} )^{4t}\\\\ \displaystyle{\frac{30,000}{20,000} =(1.0375)^{4t}](https://tex.z-dn.net/?f=A%3DP%281%2B%20%5Cfrac%7Br%7D%7Bn%7D%20%29%5E%7Bnt%7D%5C%5C%5C%5C30%2C000%3D20%2C000%281%2B%20%5Cfrac%7B0.15%7D%7B4%7D%20%29%5E%7B4t%7D%5C%5C%5C%5C%20%5Cdisplaystyle%7B%5Cfrac%7B30%2C000%7D%7B20%2C000%7D%20%3D%281.0375%29%5E%7B4t%7D)
![\displaystyle{ 1.5={(1.0375^4)}^t\\\\](https://tex.z-dn.net/?f=%20%5Cdisplaystyle%7B%201.5%3D%7B%281.0375%5E4%29%7D%5Et%5C%5C%5C%5C)
![1.5=1.159^t\\\\ \displaystyle { t=log_{1.159}1.5=2.75](https://tex.z-dn.net/?f=%201.5%3D1.159%5Et%5C%5C%5C%5C%20%5Cdisplaystyle%20%7B%20t%3Dlog_%7B1.159%7D1.5%3D2.75)
75% of 12 months is 3/4 of 12 months, which is 9 months
Answer: 2 years, 9 months
Answer:
The length of the strip of fabric is 32 inches.
Step-by-step explanation:
Consider the provided information.
The length of the edges of the square pillow should be 8 inches.
She needs a strip of fabric four times as long as one of the pillow to make a border around the pillow.
The length of the strip of fabric = 4×8 inches
The length of the strip of fabric = 32 inches
Hence, the length of the strip of fabric is 32 inches.
Answer:
3.6 lb
Step-by-step explanation:
to find the decimal of a fraction, you simply divide the numerator by the denominator. 3 divided by 5 equals 0.6, which is added to the end of your whole number.