The price of a train ticket from orlando to atlanta is normally $118.00. however, the train company is offering a special 75% discount to children under the age of 16. what is the sale price of a ticket from orlando to atlanta for someone under the age of 16? *

The sale price of a ticket from Orlando to Atlanta for someone under the age of 16 is $29.5

Step-by-step explanation:

The price of a train ticket from Orlando to Atlanta is normally $118.00.

i.e the normal sell price of a ticket is $118

But, the train company is offering a special 75% discount to children under the age of 16.

i.e the sell price of ticket for children is 75% less than the normal sell price.

So, the sell price is,

Therefore, the sale price of a ticket from Orlando to Atlanta for someone under the age of 16 is $29.5

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