Let f(x) = 5x + 6
if f(x) = 31, find x

x=5

Step-by-step explanation:

If both are equal to f(x), set the two equations equal to eachother.

5x+6=31

Isolate for x.

5x= 25

x= 5

rick has $1400 and sally has $1500

step-by-step explanation:

to find amount of money rick has after 10 years :

principal = $1000 , time = 10 years , rate = 4% annually

to find amount of money sally has after 10 years :

her friend gives to pay her $50 per year, therefore money she has after 10 years = 50 × 10 = $500

also, sally gets $1000 after 10 years,

therefore, total amount of money sally has after 10 years = 500 + 1000 = $1500

so, after 10 years : rick has $1400 and sally has $1500

answer: 1475

step-by-step explanation:

becuase you have to know what they are asking you