Answer:
It can't get more simple than that (*nose growing*)
Step-by-step explanation:
50% of 35 means 35 is 100% right? 50 is half of 100. So 50% of 35 will be half of 35, agree? So you multiply by crossing
35 = 100%
x = 50%
100 * x = 35 * 50 (do this math, you can multiply 35 by 5 then add 0)
100x = 1750
x = 1750 / 100
x = 17,5
Is 17,5 half of 35? You could have also done 35 / 2. It would be the same result because 50% is an easy percentage to work with.
23,250
Because 4,650 times 5 is 23,250
Ad+ae+bd+be so that is your solution
Answer:
Step-by-step explanation:
Rounding decimals is very simple you just have to follow two steps. First is choosing up to which digit you want to round (target digit) for example you can round to the nearest whole number (23) or the nearest tenth (23.02). Next, you simply have to look at the number after the digit you want to round to and determine whether that digit is bigger or smaller than 5 and do the following.
if it is greater than 5, you round up ... 23.016 => 23.02
if it is less than 5, you round down (target digit stays the same) ... 23.012 => 23.01
if it is equal to 5, you choose ... 23.015 => 23.01 or 23.02
Answer: Pressure(t) = 5mP*sin(191.08*t)
Step-by-step explanation:
The information we have:
Maximum pressure P = 5 mP
frequency = 1200Hz
Period = 1/frequency = (1/1200) seconds
when t = 0, P = 0, so we should use a sin function (because sin(0) = 0)
Then we can write this as:
Pressure(t) = P*sin(c*t)
where t is time in secnds, P is the maximum pressure 5mP, and c is a constant that depends on the period.
Pressure(t) = 5*sin(c*t)
knowing that the period is 1/1200 seconds, we have that:
c*1/1200 s = 2*3.14
c = 1200/(2*3.14) 1/s= 600/3.14 1/s
Our function is
Pressure(t) = 5mP*sin(191.08*t)