Kevin is 6 years older than Timothy. 4 years ago, Kevin was twice as old as Timothy. Find their present ages. pls show how to do it.

Kevin is 16; Timothy is 10

Step-by-step explanation:

k= Kevin's age

t=Tim's age

k=t+6

k-4=2(t-4)

k-4=2t+8

(t+6)-4=2t-8   :substitution

t+2=2t-8

t=10

k=t+6

k=10+6

k=16

x=-7

step-by-step explanation:

x+3=-10

-10+3=-7

x=-7

in 2010, the population of the state of california is 37.29 × 10⁶

step-by-step explanation:

population of los angeles = 3.79 × 10⁶

population of california = 9.84 × population of los angeles

                                        = 9.84 × 3.79 × 10⁶

                                        = 37.2936 × 10⁶

                                        = 37.29 × 10⁶

∴ in 2010, the population of the state of california is 37.29 × 10⁶