The ratio of mrs lee's age to her son's age now is 4 : 15 years later, the ratio of mrs lee's age to her son's age will become 3 : 1how old is mrs lee now?

The ratio of Mrs Lee's age to her son's age now is 4 : 1

5 years later, the ratio of Mrs Lee's age to her son's age will become 3 : 1

How old is Mrs Lee now?

Let Mrs Lee's age and her son's age now be 4x and x respectively.

Mrs Lee's age after 5 years = 4x + 5

Her son's age after  years = x + 5

We know that the ratio of Mrs Lee's age to her son's age after 5 years will be 3:1. Therefore, we have:

We have son's current age = 10 years

Therefore, Mrs Lee's is years old now

-3

step-by-step explanation:

a drawing really does here:

so i draw the horizontal line y=2 and the vertical line x=-2 at this intersection i put b (this is where my right angle is going to be).   so point b is at (-2,2).   point a is 5 units long and is also on y=2 so this point has to be (3,2) or (-7,2) -doesn't matter i will go with (3,2).

now we know c is at (-2,y) we don't know the y yet bet we know that c is on x=-2.

we have the area of the triangle is .5bh=12.5

we know the base length is 5 (ab)

we have the height is (2-y) if you look at your

plug in

.5(5)(2-y)=12.5

solve for y to get the y-coordinate for c

2.5(2-y)=12.5

divide both sides by 2.5 giving:

2-y=5

now subtract 2 on both sides

-y=3

y=-3