Invitations

For every 5 minutes writes Dana 10 invitations, while Anna 14 invitations. How long will write together 120 invitations?

Result

t =  25 min

Solution:


10/5 *t + 14/5 * t = 120

24t = 600

t = 25

Calculated by our simple equation calculator.







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To solve this example are needed these knowledge from mathematics:

Do you have a linear equation or system of equations and looking for its solution? Or do you have quadratic equation?

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