Vanessa wants to invest his savings at 7.00% simple interest for a given time, and he knows he will receive $700 in interest; but Vanessa's financial advisor wants him to
invest for 7 years longer, in which case he would recieve $1,400 in interest. Find the
amount of savings and the time in years) Vanessa wants to invest for​

step-by-step explanation:

divide, then simplify your answer.

1. make -15.66 ÷   5.8 a fraction. then divide.

2. simplify.  

3. final answer.  

x=-7

step-by-step explanation:

x+3=-10

-10+3=-7

x=-7

this is a direct variation proportion. y = kx

y is the total amount due, k is the constant of variation, and x is the number of texts sent.

plug in the 3.20 and the 16 to solve for the "k". this is the constant of proportionality. it is the value that will not change.

3.20 = k(16). solving you get $.20 per text.

the equation would then be y = .20x