Question

Оля купила а пензликів по 9 грн.У касу вона заплатила 50 грн.Скільки решти повина отримати Оля

Answer 1

9*a (грн) -коштують а пензликів
50 - 9*а (грн) - решта грошей

Answer 2

Calculating Change for Olga's Purchase

To calculate the change Olga should receive, we can subtract the total amount she paid from the total cost of the brushes.

Total cost of the brushes: - Olga bought the brushes for 9 hryvnias each. - Let's assume she bought x number of brushes. - The total cost of the brushes can be calculated as 9 * x.

Total amount paid: - Olga paid 50 hryvnias at the cash register.

Calculating the Change

To find out how much change Olga should receive, we can subtract the total amount paid from the total cost of the brushes.

Equation: - Total cost of the brushes - Total amount paid = Change - 9x - 50 = Change

Solving for x

To find the number of brushes Olga bought, we can solve for x in the equation 9x - 50 = Change.

Let's solve for x: 9x - 50 = Change 9x - 50 = 0 (assuming Olga didn't receive any change)

Finding the Number of Brushes

Solving for x: 9x = 50 x = 50 / 9 x ≈ 5.56

Since Olga can't buy a fraction of a brush, she likely bought 5 brushes.

Calculating the Change

Now, let's calculate the change Olga should receive. - Total cost of 5 brushes: 9 * 5 = 45 hryvnias - Change = Total amount paid - Total cost of the brushes - Change = 50 - 45 = 5 hryvnias

Olga should receive 5 hryvnias in change.