We can subtract from the number of strings of length 4 of lower case letters the number of string of length 4 of lower case letters other than x. Thus the answer is 264 − 254 = 66,<span>351</span>
Perimeter = a + b + c = 30
Area = 1/2 x a x b = 30
Multiples of 30: 2, 3, 5, 6, 10, 12, 15
For perimeter c = 30- (a+b)
C= sqrt( a^2 + b^2)
Using the possible combinations of the above:
5 and 12:
C = sqrt(5^2 + 12^2) = 13
5 + 12 + 13 = 30 for the perimeter
Area = 1/2 x 5 x 12 = 30
The sides are 5, 12 and 13 cm
So, this is a proportion problem. If we express 75% as a fraction (3/4ths), we have:
![\frac{370+x}{500+x}=\frac{3}{4}](https://tex.z-dn.net/?f=%20%5Cfrac%7B370%2Bx%7D%7B500%2Bx%7D%3D%5Cfrac%7B3%7D%7B4%7D%20)
Since he won all of his games, we add the number won (x), to the number previously won and divide it by the total games played which is just the previous games played plus the number of current games played, so since he lost no games we still add x to the denominator as well. Solving this gives us:
![4(370+x)=3(500+x) \implies\\ 1480+4x=1500+3x \implies \\ x=20](https://tex.z-dn.net/?f=%204%28370%2Bx%29%3D3%28500%2Bx%29%20%5Cimplies%5C%5C%201480%2B4x%3D1500%2B3x%20%5Cimplies%20%5C%5C%20x%3D20%20)
That x value is 20.
Answer:
1/4
Step-by-step explanation:
5/20 = 1/4
hope this helps