Well first you have to add common like terms in this case 2r and -6r to get -4r now your equation is -4r+8=40, now subtract 8 from both sides to leave r by itself and get -4r=32, now divide both sides by -4 to get r=-8

Hope this helps

3 0

2 years ago

Read 2 more answers

What is 14 1/4 minus 6 4/5

klemol [59]

Hope this will help u..:)

7 0

2 years ago

Read 2 more answers

Please help me asap!!!

aliya0001 [1]

Answer:

h t t p s : / / w w w . y o u t u b e . c o m / w a t c h ? v = i i k 2 5 w q I u F o

Explanation:

heres a video on the topic (it also gives the answer) (delete the spaces)

4 0

2 years ago

5. Amy deposited $7,000 in a bank account earning 3.5% interest, compounded

Semenov [28]

Answer:

Step-by-step explanation:

Given the following data;

Principal = $7,000

Interest = 3.5% = 3.5/100 = 0.035

To find the future value, we would use the compound interest formula;

$A = P(1 + \frac{r}{n})^{nt}$

Where;

A is the future value.

P is the principal or starting amount.

r is annual interest rate.

n is the number of times the interest is compounded in a year.

t is the number of years for the compound interest.

Substituting into the equation, we have;

$A = 7000(1 + \frac{0.035}{n})^{nt}$

7 0

2 years ago