Posted by **Ann** on Friday, October 19, 2012 at 12:11am.

Mr. Jacob is 55 years old and Tony is 7 years old. In how many years will Mr. Jacob be 4 times as old as Tony? Please help me solve this.

- Math Grade 5 -
**Reiny**, Friday, October 19, 2012 at 9:24am
real easy with algebra ....

55+x = 4(7+x)

55+ x = 28 + 4x

27 = 3x

x = 9

but grade 5 ????

make two colums of their ages, going up one at a time, until the first is 4 times the second

55 7

56 8

57 9

58 10

59 11

60 12

61 13

62 14

63 15

64 16 ---- ah, 64 = 4(16) ---> 55+9 = 4(7+9)

- Math Grade 5 -
**Norbert**, Wednesday, December 4, 2013 at 6:00am
I am a parent,my son is in g-5. i do try to help in homework. i do no have a tuturor.the answer is right

- Math Grade 5 -
**Connor**, Tuesday, November 3, 2015 at 6:36am
I'm I pretty smart student and the answer is correct.

Algebra:

55+x = 4 (7+x)

55+ x = 28 + 4x

27 = 3x

x = 9

And if your grade 5

👇🏻👇🏻👇🏻 👇🏻👇🏻👇🏻

Make two columns

Mr. Jacob Tony 9 more years tony will be

55 7 16

56 8

57 9

58 10 Mr. Jacob will be 64

59 11

60 12

61 13

62 14

63 15

64 16➖➖➖ 64=4(16) 55+9 (7+9)

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