Asked by sifon
"the sum of the age of a mother and a daughter is 44 years. three years ago the product of their ages was 192.how old is the daughter now? plsssss show working"
Answers
Answered by
R_Scott
m + d = 44 ... m = 44 - d
(m - 3)(d - 3) = 192 ... substituting ...(41 - d)(d - 3) = 192
... 41 d - d^2 -123 + 3 d = 192 ... d^2 - 44 d + 315 = 0
use the quadratic formula to find the ages
(m - 3)(d - 3) = 192 ... substituting ...(41 - d)(d - 3) = 192
... 41 d - d^2 -123 + 3 d = 192 ... d^2 - 44 d + 315 = 0
use the quadratic formula to find the ages
Answered by
Anonymous
1 plus 1 in binary number
Answered by
Sanni Sadiq
1+1 in binary
Answered by
Anonymous
Sum of ages of father, mother and daughter = 100. Five years interval between them each. How many years is the daughter?
Answered by
maunapon
give me the final answer of the question
Answered by
ying
The total age of Cheko and Miko is 44 years.
Three years ago, Cheko was older
than Miko by 20 years.
How old are they now?
Three years ago, Cheko was older
than Miko by 20 years.
How old are they now?
Answered by
ying
Cheko have some 10-cent and 20-cent coins.
The coins add up to $2.10.
There are three more 10-cent than 20-cent coins.
How many 10-cent coins and 20-cent coins does Cheko have?
The coins add up to $2.10.
There are three more 10-cent than 20-cent coins.
How many 10-cent coins and 20-cent coins does Cheko have?
Answered by
ying
Mr. Noel always saves 6/11
of his monthly salary. If his monthly salary is increased by $298, his monthly savings will be $4572. How much is Mr Noel's monthly salary before the increase?
of his monthly salary. If his monthly salary is increased by $298, his monthly savings will be $4572. How much is Mr Noel's monthly salary before the increase?
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