Let the two numbers be X and Y
Given:
X*Y=75 ==> Y=75/X
X+Y=28
==> X+(75/X)=28
==> X2+75=28X
==> X2-28X+75=0
==> X2-3X-25X+75=0
==> X(X-3)-25(X-3)=0
==> (X-3)(X-25)=0
==> X1-3=0 or X2-25=0
==> X1=3 or X2=25
substitute X1=3 in X+Y=28
3+Y1=28
==>Y1=25
==>Y1=X2
hence the two numbers are 3 and 25
Their only common factor is 1.
Only the number 1.
Only the number 1.
1, 3, 9.
The HCF of the given numbers is 7
1 or 7
1 and 7.
21/28 = 3/4 = 75%
1, 3, 5, 15, 25, 75 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84
Late Show with David Letterman - 1993 20-75 was released on: USA: 28 January 2013
The LCM of both numbers is 28
The factors of 75 are: 1, 3, 5, 15, 25, and 75.The factors of 56 are: 1, 2, 4, 7, 8, 14, 28, and 56.The only factor common to 56 and 75 is ' 1 ', so it's also the greatest.
25 goes into 100 and 75.
75% X 28 = 21
15 goes into 75 five times
3 goes into 75, 25 times.
% rate = 37.33%= 28/75 * 100%= 0.3733 * 100%= 37.33%
21 out of 28 = 75%
28. If you divide 28 into 1,400 you get 1|50. 28 goes into 28 once.
the correct answer is 75%......21 is 3/4 of 28 5.88%
47
75%
Jeopardy - 1984 28-75 was released on: USA: 30 December 2011
25 and 3 25*3 = 75 25+3 = 28