Eli is going on a three-day ride with 13 other dudes, 3 horse wranglers, and 1 trail boss. Each person and horse team needs 84 pounds of supplies for the trip. The rance has 5 wagons, but they only want to haul one wagon for the group. Use estimation to figure out which wagon can haul all the needed supplies for the ride.

answer: hey there,

the answer you are looking for is a..

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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