A bumblebee weighed wounces. One day, the bumblebee drank 5 times its weight in water and ate 1/2 its weight in food. Which equation can be used to find c, the combined weight of the water and the food that the bubmlebee had in one day? A) c = 2W + W/5 C) c = W + 5-1/2
B) C = W + 5+ 1/2
D) c = 5W + w/2

it's

both equations and proportions are better.

x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

you didn't give me the choices, so i will just give you the graph so you can look at your choices and choose the right one.