Question 8(multiple choice worth 1 points) (04.03 lc) given the following system of equations:
−4x + 8y = 16
2x + 4y = 32
what action was completed to create this new equivalent system of equations? −2x + 4y = 8
2x + 4y = 32
a) divide the second equation, 2x + 4y = 32, by 2.
b) divide the first equation, −4x + 8y = 16, by 2.
c) multiply the second equation, 2x + 4y = 32, by −1.
d) multiply the first equation, −4x + 8y = 16, by −1.

Option B) Divide the first equation, −4x + 8y = 16, by 2

Step-by-step explanation:

we have

----> First equation

----> Second equation

Divide the first equation by 2 both sides

so

apply distributive property left side

The new equivalent system is

---> first equation divided by 2

---> is the same second equation

therefore

Option B

7 weeks

step-by-step explanation:

convert each fraction to the least common multiple of 20, so 3/4 = 15/20 & 1/10 = 2/20, then divide 15 by 2 and you get a little over 7, so the food will last 7 weeks.