Posted by Ann on .
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,
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,
I am a parent,my son is in g5. i do try to help in homework. i do no have a tuturor.the answer is right

Math Grade 5 
Connor,
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) 
Math Grade 5 
lennin,
where did you get the 3x from in order for it to be in the equation