<u>Answer:</u> $42546.9 will be the earning in 4 years.
<u>Step-by-step explanation:</u>
The equation for compound interest follows:
![A=P(1+\frac{r}{100})^n](https://tex.z-dn.net/?f=A%3DP%281%2B%5Cfrac%7Br%7D%7B100%7D%29%5En)
where,
A = total amount
P = Principle amount
r = rate of interest
n = number of years
We are given:
Earnings earned per month = $3250
Earnings earned per year = ($3250 × 12) = $39000
The values become:
![P=\$39000\\r=2.2\%\\n=4yrs](https://tex.z-dn.net/?f=P%3D%5C%2439000%5C%5Cr%3D2.2%5C%25%5C%5Cn%3D4yrs)
Putting values in above equation, we get:
![A=39000(1+\frac{2.2}{100})^4\\\\A=\$ 42546.9](https://tex.z-dn.net/?f=A%3D39000%281%2B%5Cfrac%7B2.2%7D%7B100%7D%29%5E4%5C%5C%5C%5CA%3D%5C%24%2042546.9)
Hence, $42546.9 will be the earning in 4 years.
Answer:
The table C
Step-by-step explanation:
when you multiply the x number in the table c by 0.3 you get the same answer as the one in the y column. The constant of proportionality is the value that stays constant in the ratio. Since when you multiply each number in the x column by 0.3 and you always get the number in the y column it shows that the table c is correct.
Sqrt72 = sqrt(9x8) = 3sqrt8 = 3(sqrt(4x2)) = 3(2sqrt2) = 6 sqrt(2)
2. sqrt x = x^½. Rules of indices states for a power of a power, you times them.
so (x^28)^½ = x^14
Answer:
The last gearwheel would make 3 revolutions.
Step-by-step explanation:
The measure of the revolution of a gear per minute is referred to as the speed ratio. The speed ratio is the ratio of the speed of the driver gear to that of the driven gear, or ratio of the number of teeth of the driven gear to the number of teeth of the driver gear.
In the given question, the second and third gears are idlers. while the first is the driver and the fourth the driven.
The revolution of the last gearwheel can be determined by;
Speed ratio = ![\frac{number of teeth of the driven gear}{number of teeth of the driver gear}](https://tex.z-dn.net/?f=%5Cfrac%7Bnumber%20of%20teeth%20of%20the%20driven%20gear%7D%7Bnumber%20of%20teeth%20of%20the%20driver%20gear%7D)
= ![\frac{10}{30}](https://tex.z-dn.net/?f=%5Cfrac%7B10%7D%7B30%7D)
= ![\frac{1}{3}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B3%7D)
Speed ratio = 1 : 3
The last gear would make 3 revolutions.