If 4 gal is 25%
and unknown gal is 40%
4x40=160
160/25=6.4
6.4-4=2.4
2.4 is your answer
Laura has a total of 13 books. To pick 3 out of this 13 books is expressed as 13C3 which is equal to 286. Now to pick a science and 2 mathematics books may be expressed as,
(4C2) x (6C1) = 36
The probability is the quotient when 36 is dived by 286. The answer is 18/143 which is approximately equal to 0.126.
The two other points would be (13,1) and (13,13) because the square tile is 12 inches on each side.
The decimal answer is 1.697368421 and the fraction answer is 129/76
Answer:
5:3
Step-by-step explanation: