22-11-2021
Mathematics

contestada

a total of 78 seats for a concert are sold,producing a total revenue of $538.there are two type of seats ,seat a cost $3 and seat b cost $11,how many of each seats were sold?

Respuesta :

takotakuna2003 takotakuna2003

22-11-2021

Answer:

a=40

b=38

Step-by-step explanation:

Amount of Seat a - a

Amount of Seat b - b

[tex]a + b = 78 \\ 3a + 11b = 538[/tex]

3a+3b=234

3a+11b=538

8b= 304

b= 38

a=78-38=40

Answer Link

Otras preguntas

Quick Answers Please

You pay $20 for 4 cups of coffee. What is theunit rate?

Tiny robots which are so small they can be inhaled is an example of what kind of future technology?

Why were the peasants in the countryside growing unhappy? Why were artisans and the middle class upset?

PLEASEEE HELP!!!!!!!!

Study this still image from the National Geographic video "How Flu Viruses Attack": Which statement most accurately describes how the image affects the implicit

Which is NOT a direct method used to find the zeros/roots/x-intercepts of a quadratic function? Factor then set the factors equal to 0 Use the quadratic formul

would you rather buy 18 eggs at this price 2/$8.00 or 18 eggs for 97c at buy 2 get 1 free

I a liter jar contains 0.5 moles of gas at a pressure of 2 ATM what is the temperature of the gas

if f(x)= 4^x then f(2) =