When the product of 6 and the square of a number is increased by 5 times the number, the result is 4. which equation represents this situation?
6x^2 + 5x - 4 = 0
6x^2 + 5x + 4 = 0
6^2x + 5 + x = 4
6 + x^2 + 5x = 4

Let

x-------> the number

we know that

1) The expression "the product of and the square of a number", represent the equation

2) The expression " increased by times the number", represent the equation

3) The complete expression "the product of and the square of a number is increased by times the number, the result is ",  represent the equation

-------->

therefore

the answer is the option

75 tickets have been sold so far.

step-by-step explanation:

in this question it is clearly mentioned that 45 children's tickets have been sold and this number is 60% of the total tickets sold.

now let's assume the total number of tickets sold be x.

then 60% of x = 45

⇒

⇒ x(.6) = 45

by dividing with .6 on both the sides of the equation

⇒ x = 75

therefore 75 tickets have been sold so far.

tip $2.90

total $17.40