Richard and teo have a combined age of 39. richard is 3 years older than twice teo’s age. how old are richard and teo

Teo: 12

Richard: 27

Step-by-step explanation:

Teo's age = x

Richard = 2x+3 (three years older than twice Teo's age)

If Richard+Teo=39 then x+2x+3=39

solve

3x=36

x=12

If Richard is 2x+3 then do 12*2+3=27

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.