15. the principal at a high school is planning a concert to raise money for the
music programs. he determines the profit p from ticket sales depends on the
price t of a ticket according to the equation p = -200€ + 3600t – 6400.
all amounts are in dollars. if the goal is to raise $8500, what is the smallest
amount the school should charge for a ticket to the concert?

let soccer = x and golf = y

part a

1st equation: x + y = 125

2nd equation: x = y +45

part b

replace x in the 1st equation with the 2nd one:

y + 45 + y = 125

simplify:

2y + 45 = 125

subtract 45 from each side:

2y = 80

divide both sides by 2:

y = 80/2

y = 40

she plays golf for 40 minutes.

part c

no because she plays soccer for 45 minutes longer than golf 40 +45 =   85 minutes, not 80 minutes.

it is x equals 3   plese mark me really need it

step-by-step explanation:

d.) yes, because the volume of the cone is greater than the volume of the sphere

step-by-step explanation: