Mariam's father is now 4 times as old Mariam. In 10 years' time, Mariam's father will be twice as old as Mariam. How old is Mariam now?

This due is after 15 min helpp

5

Step-by-step explanation:

Let Mariam's age be x and Mariam's father's age be 4x.

2(x+10) = 4x+10

2x+20 = 4x+10

4x-2x = 20-10

2x = 10

x = 5

r(0,90)(x,y) . t(-5,0)

last option

step-by-step explanation:

∆def to ∆d"e"f"

- rotate 90 counterclockwise degrees

- then translated 5 to the left (x --> x - 5)

answer is the last option

answer: x=3 and y=4

step-by-step explanation: