Large ice cream cost $5 and small ones are aold for $3.khadji buys 15 ice creams. what is the largest number of large ice creamsthat she can buy if she cannot spend more than $60 .

7 ice creams

First 5 times 7 to get 35 Then subtract that number from 60 to get 25 the. Then take 8 times 3 to get 24

35+24=59 which is below the max budget

12 large ice creams

Step-by-step explanation:

let's call the solutions x₁ = (5 - 2√7)/3 and x₂ = (5 + 2√7)/3

then the equation is (x-x₁)(x-x₂) = 0

if you fill that in you get a lot of numbers which you can recognize as ax²+bx+c=0.

step-by-step explanation:

you can see that a=1 (there is just an x²)

b = (-5 -2√7 + 2√7 - 5)/3 = -10/3

c = -2√7)/3 ) * (-5+2√7)/3) = -1/3

so your answer is 3x^2 – 10x – 1 = 0