# help with math homework! pls?

Topic: help with math homework! pls?
July 16, 2019 / By Kent
Question: i need help with these 5 problems pls 6) Theresa is 5 times as old as Kating. In 10 years Theresa will be 3 times as old as kating. Find the age of each 7) Jun's age is 2 years more than twice Robert's age, and the sum of their ages will be 32. How old is each? 8) Monia is 5 years older than Obin. 6 years from now, the sum of their ages will be 37. Find the age of each 9) A father is 5 years more than 6 times his son's age. In 5 years, he will be 4 times his son's age then. Find the age of each. 10) Ana is 6 years holder than Bella. When they compared their ages they found that 3 years from now, the sum of their ages will be 46. How old is each?

## Best Answers: help with math homework! pls?

Horace | 1 day ago
6)Theresa is 50 years old, while Kating(<-- what a name O_o) is 10 years old. 7)Jun is 22 years old, while Robert is 10 years old. 8)Monia is 15 years old, while Obin is 10 years old. 9)Father is 35 years old, while Son is 5 years old. 10)Ana is 23 years old, while Bella is 17 years old. Omg, I love these works! I want MOAR!! >:D Btw, you only need the answers or the calculations too? :S LOL, You changed your answers :D | | | | V
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Originally Answered: Math!-See I nedd help on my math Homework-so if u can HELP PLEASE DO SO!_Lets DONT SAY NOTHIN SMARTN PLZ?
Originally Answered: Math!-See I nedd help on my math Homework-so if u can HELP PLEASE DO SO!_Lets DONT SAY NOTHIN SMARTN PLZ?
For most of the problems, don't forget the negative in front of the ( ...) changes the value of a negative to a positive and a positive to a negative, also don't forget the value with the negative number as you distribute it. I hope this helps. I only described the 1st 2 problems, since I'm sure that you will figure out the rest since it is done the same way. e) 15-(x-6)=6-(3x+5) 15-x+6= 6-3x-5 {distributing the -1 in front of the () } 21-x =1-3x {adding the like terms together} 20 = -2x { dividing by 2 to find what x = by itself} -10 = x A) (8x-11)-(15-x)=1 {distributing the -1 in front of the () } 8x -11 -15 +x = 1 9x -26 = 1 { combining like terms} 9x = 27 {the variable one side & the number on the other} x =3 {dividing by 9, to get the answer} W) 2(x-5)-5x=8-3(5x-2) 2x - 10 -5x = 8 -15x +6 -3x - 10 = 14 -15x 12x = 24 x = 2 Q) 3(2x-3)-12=4(x-5) 6x -9 -12 = 4x -20 6x - 21 = 4x -20 2x = 1 x = (1/2) U) 5-7(2-x)= 31-4(2x-5) 5 -14+7x = 31-8x+20 -9+7x = 51 -8x 15x = 60 x = 4 R)3(x+5)=21-4(x+5) 3x +15 = 21 -4x -20 3x + 15 = 1-4x 7x = -14 x = -2 O)3x+2(x+2)=13-(2x+2) 3x +2x +4 = 13-2x-2 5x+4 = 11 -2x 7x = 7 x =1 T) 2(x+4)+16=0 2x +8 +16 =0 2x = -24 x = -12

Elyakim
6. Theresa is 25 and Kating is 5. The difference in there ages changes by 2x (5x to 3x) this change happens in 10 years so each x is worth 5 years(10 years/2) so theresa= 5(5)=25 leaving Kating at 5 they could also be 50 and 10 7.Jun is 22 Robert is 10 since jun is two years more subtract 2 from the sum of their ages(32-2=30) since jun is 2 times robertos age and roberto is obviously 1 times his age.(2+1=3) you divide 30 by 3 giving you 10 so roberto is 10 now you need to multiply 10 by 2 and add 2 in order to get jun's age. (10*2+2=22 8.Monia is 25 Obin is 20 since 6 years from now the sum of their ages will be 37 they will have both become 6 years older so you can subtract 12 from 37 to get the sum of their ages now 25 since monia is 5 years older subtract 5 from 25=20 divide 20 by 2=10 obin is 10 add 5 to 10=15 monia is 15 9.Father is 35 son is 5 i just used trial and error on this one 10. ana is 23 bella is 17 46-6 (6 because 3 years from now they will both have gained a total of 6 years)=40 40=total age today 40-6(6 because ana is 6 years older)=34 34/2(2 because there is two of them)=17 so bella is 17 17+6=23 ana is 23 hahah yeah i went back to show my work and i got the second one wrong. haha i figured it out while i was trying to explain it. but i agree these are funn :D
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Cletis
6) let x = katings age, let y = theresas age 5x = y (10+y) = 3(10+x) -this should make it easier for you!!! note, their ages have to be in the 5 times table, other wise it wont work!!! 7) let juns age = x and let robers age = y 2+2x=y x+y=32 x+(2+2x)=32 3x+2=32 3x=30 x=10 2+2x=y 2+2(10)=y 22=y juns age = 22, roberts age = 10 10) bella is 17 and Ana is 23, because, if in 3 years the sum of their ages is 26, and ana is 6 years older than bella, then in 3 years time bella will be 20, and ana will be 26 = 46
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Originally Answered: math homework help pls?
Let b=amount of pollution given by smokestack B per hour smokestack A gives 1.25b pollution per hour = 5/4 b Total pollution per hour = x + 5/4 b = 9/4 b in 20 hours, total pollution = 20* 9/4 b = 45 b It would take smokestack B 45 hours to pollute this much

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