Marcus has $6 left over from his trip. If his move ticket cost $5.50 and he
purchased a drink for $3.00, and a bag of
popcorn for $3.50, and a box of candy
for $2.00, how much money did he
originally take to the movie theater?

yes

step-by-step explanation:

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

make sure you have version 2.50

try looking in the very back of the book : )

step-by-step explanation:

you can download it here