Given the following system of equations:
−4x + 8y = 16
2x + 4y = 8
what action was completed to create this new equivalent system of equations?
−2x + 4y = 8
2x + 4y = 8
a. multiply the second equation, 2x + 4y = 8, by −1.
b. multiply the first equation, −4x + 8y = 16, by −1.
c. divide the second equation, 2x + 4y = 8, by 2.
d. divide the first equation, −4x + 8y = 16, by 2.

  D.Divide the first equation, −4x + 8y = 16, by 2.

Step-by-step explanation:

All you have to do is look at the effect of the proposed action on the constant on the right to tell which answer choices are incorrect.

D.Divide the first equation, −4x + 8y = 16, by 2.

Step-by-step explanation:

−4x + 8y = 16

2x + 4y = 8

Take the first equation and divide it by 2

−4x/2 + 8y/2 = 16/2

-2x + 4y = 8

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

fjfjfhdhdhdhjjdjdjdjdjjd thats the answers

step-by-step explanation: