How do I figure out this math question?

Bob ate 74 crackers in 30 minutes. How many crackers could


Bob eat in 45 minutes?How do I figure out this math question?
74:30=x:45


30x=75x45


30x=3375


x=112.5


the answer should be whole


so 112 crackers is the answerHow do I figure out this math question?
74 cracker in 30 minutes means 74 crackers/30minutes in mathematical form. So to eliminate the minutes at the bottom we multiply the ratio by 45 minutes and the minutes units cancel. This is a technical way to look at it but it will help you with more complex questions later. So we have





74 crackers/30minutes * 45minutes = 111 crackers





So Bob can eat 111 crackers in 45 minutes





Another way to look at it is that 74 crackers/30minutes = 2.46 crackers/minute which is how many he can eat per minute and then just multiply by 45 minutes because we want to find out how much he can eat in 45 minutes.





Hope I didn't confuse you
dividing crackers by minutes gives you how many crackers Bob will eat in a minute (crackers per minute) 74/30 - then times this by the number of minutes you need (45)





Therefore (74/30) * 45 = the answer you seek ;)
Bob ate 74 crackers in 30 minutes.





Therefore, he ate 74/2 crackers in 15 minutes = 37 crackers in 15 minutes.





In 45 minutes, he eats 74 + 37 crackers = 111
N : 45 :: 74 : 30


N = 45(74) / 30


N = 111 crackers



Was Bob full after eating 74 crackers? Many details left unsaid. The conventional answer: 74 x 1.5 = 74 + 37 = 111
you will have to find out how many he can eat in one minute first. do that by dividing and simplifying until you get to one...


then you just sub in 45