Someone help
I don’t get it at all

7

Step-by-step explanation:

a package weighs 96

it has 6 boxes

all the boxes contain 2 bags (9 pound bag of beans and x pound bag of rice)

9 times 6 is 54

96 minus 54 is 42

since there are 6 more bags and they are or rice and they all weigh the same you would divide 42 by 6 and get 7

they are each 7 pounds

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

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