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anonymous
 one year ago
PLEASE HELP!
A geometry class has a total of
39 students. The number of males is 13
more than the number of females. How many males and how many females are in the class?
anonymous
 one year ago
PLEASE HELP! A geometry class has a total of 39 students. The number of males is 13 more than the number of females. How many males and how many females are in the class?

This Question is Closed

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0first, we need to define any variables

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0let x represent the number of males let y represent the number of females

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0what is the condition they have set for us? 'there are 13 more males than there are females' right?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0hence x=13+y right? can you see this?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so in total x+ y = 39 and we know x interns of y right? x=13+y so sub this into the equation (13+y)+y=39 13+2y=39 can you solve this now?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0no problem, fan and medal if you please

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0The sum of two numbers is 49 and the difference is 9 . What are the numbers?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0we have two sets of equations. what does sum mean? and what does difference mean?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0sum implies + addition difference implies  subtraction, right?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so if we have a number called x and a different number called y then x+y=49 and xy=9

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0can you solve these simultaneously now?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0x=9+y right, just rearrange the second equation. then sub this equation into the first equation. (9+y)+y=49 2y=40 y=20

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0At a hockey game, a vender sold a combined total of 183 sodas and hot dogs. The number of sodas sold was two times the number of hot dogs sold. Find the number of sodas and the number of hot dogs sold.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0x+y=183 let x be soda y=hotdogs x=2y so 2y+y=183 3y=183 y=61, x=122

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0the pattern is all similar, try this on your own now

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so number of hotdogs would be 61
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