What is he answer to this -15s + 12.81 = 15.71 − 13.5s + 17.2

Okay, so first we will need to combine like terms.

The like terms in the question are -15s and 13.5s.

Combining usually means addition. So you add -15s and 13.5s.

That would be -1.5s.

Now we need to combine the rest of the equation, and that would be 12.81 + 15.71 + 17.2

The answer to that would be 45.72

Now combine the two answers

-1.5s = 45.72

The next step is to divide each term by -1.5

-1.5 ÷ -1.5s would just leave us with s.

Now,

-1.5 ÷ 45.72 will be -30.48.

So you're answer is  s = -30.48

Hope this helped! :D

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

14.3

step-by-step explanation:

add all the numbers together.

9 + 12 + 15 + 16 + 17 + 17 = 86

now, divide 86 by how many numbers we have: 6.

86 / 6 = 14.3