Task Card #6 Ebenezer is serving meals to people at a family dinner. He
has already served 4 people. He has 8 people left to
serve. What is the number of people Ebenezer is serving
at the family dinner? Which equation matches the situation?

4 people

Step-by-step explanation:

In family dinner there are 12 members In family dinner Ebenezer is served to 4 peoples and 8 peoples are left

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