The answers are going to be 5100 and 510000. hope that helped
Answer:
<em>The number is 46</em>
Step-by-step explanation:
<u>Equations</u>
Suppose:
a = One digit of the number
b = Tens digit of the number
The sum of the digits is 10:
a + b = 10
The number expressed as two-digits quantity is ab, and its value is
10a+b
When we add 18 to that number, we have:
10a+b+18
And that is represented as the number reversed:
10a+b+18=10b+a
Simplifying:
9a+18=9b
Dividing by 9:
a + 2 = b
Substituting in the first equation:
a + a + 2 = 10
2a = 8
a = 4
b = a + 2 = 6
Thus the number is 46
r = 255
r = R-2RF/W
R = 1,750
F = 63.2
W = 148
Now, we need to plug the values in to substitute the variables with real numbers.
r = 1750-2(1750 x 63.2)/148
First, solve for the parentheses.
r = 1750-2(110600)/148
Second, multiply by 2.
r = 1750-221200/148
Next, divide by 148.
r = 1750 - 1494.594
Then, we subtract.
r = 255.406
Lastly, we round it to the nearest whole number.
r = 255
It is given in the question that
Jess has dinner at a restaurant. The dinner bill is B dollars. She pays a 21% tip.
THerefore,
Jess's bill amount without tip is $ B.
Jess's tip amount is 21 % of B or 0.21B
THerefore Jess's total amount is the sum of Jess's bill amount without tip and Jess's tip amount, that is
Hence, Jess's total amount is 1.21B .
Sound intensity: <span> 7.6 × 10-4 watts/m2?
To solve this problem you have to understand the threshold of hearing (Level)
</span><span>Io = 10^−12 W/m²
</span>
Solve the problem:
<span>"LI = 10×log (I / Io) dB = 10×log (7.6×10^−4 / 10^−12) dB"
</span>
and the answer is 88.81dB
Quoted answers are not mine. All credits to their internet owners.
Further help/Credits to:
https://answers.yahoo.com/question/index?qid=20130217095248AALXBjj
I'm only here to help, not get into trouble.
