Question 1120629
<br>
(1) The ratio of their current ages is 3:4, so let John's age be 3x and Michael's age be 4x.<br>
It is a typical way to start work on a problem where a ratio is given.<br>
(2) Using 3x and 4x for their current ages, write expressions for their ages 10 years ago.<br>
(3) Write and solve the equation for x that says John's age 10 years ago was half of Michael's age then.<br>
(4) Use the value you find for x to find their current ages, which are 3x and 4x.