Family

Son is 3/5 smaller than the mother. Mother is 99 cm higher than the son. How tall is the mother?

Correct answer:

m =  165 cm

Step-by-step explanation:


s = m - 3/5 m
m = 99 + s

s = m - 3/5·m
m = 99 + s

2m-5s = 0
m-s = 99

Row 2 - 1/2 · Row 1 → Row 2
2m-5s = 0
1.5s = 99


s = 99/1.5 = 66
m = 0+5s/2 = 0+5 · 66/2 = 165

m = 165
s = 66

Our linear equations calculator calculates it.



Did you find an error or inaccuracy? Feel free to write us. Thank you!







Tips for related online calculators
Need help calculating sum, simplifying, or multiplying fractions? Try our fraction calculator.
Do you have a linear equation or system of equations and looking for its solution? Or do you have a quadratic equation?
Do you want to convert length units?

You need to know the following knowledge to solve this word math problem:

Related math problems and questions: