Start Fraction n over 3 End Fraction minus (negative 3.9)
Answer:
3
Step-by-step explanation:
Given:
If fifteen less than two times a number is divided by six more than the number, the result is four less than 9 times the reciprocal of the number.
Question asked:
Find the number ?
Solution:
Let the number be 
As given that:-
<u>15 less than 2 times a number </u>
<u> 6 more than the number = 4 less than 9 times the reciprocal of the number</u>
Then the equation will be:-
By cross multiplication:-
By adding both sides by 
Adding both sides by 
Dividing both sides by 6
Taking root both sides
![\sqrt[2]{x^{2} } =\sqrt[2]{9} \\x=\sqrt[2]{3\times3} \\x=3](https://tex.z-dn.net/?f=%5Csqrt%5B2%5D%7Bx%5E%7B2%7D%20%7D%20%3D%5Csqrt%5B2%5D%7B9%7D%20%5C%5Cx%3D%5Csqrt%5B2%5D%7B3%5Ctimes3%7D%20%5C%5Cx%3D3)
Thus, the number is 3.
The first thing you should know in this case are the following conversions:
1T = 2204.62 lb
1mi = 5280 feet
Applying the conversions we have:
6 T / mi * (1/5280) (mi / feet) * (2204.62 / 1) (lb / T) = 2.50525 lb / ft
answer
6 T / mi = 2.50525 lb / ft
<span>A=2(wl+hl+hw)=2·(8·6+1·6+1·8)=124</span>
Answer:
13 quarters, 26 nickels.
Step-by-step explanation:
n will be number of nickels, q will be number of quarters, and we have 39 total coins
so n + q = 39 (number of nickels + number of quarters = 39 coins.
The problem also says there are twice as many nickels as quarters. so we can call the number of nickels n or we can call it 2q (2 times the number of quarters)
which means
n + q = 39
2q + q = 39
3q = 39
q = 13
and she has 2 times as many nickels as quarters... 2 x 13 = 26 nickels
LMK if you have questions.
If you want to double check the money,
n(0.05) + q(0.25) = 4.55 is the equation to use.
26(0.05) + 13(0.25) = 1.3 + 3.25 = $4.55
