Thaliabree3 Thaliabree3

26-02-2020
Mathematics

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Gina visited the aquarium with some of her cousins, aunts, and uncles. The group bought 20 admission tickets for $340. Adult tickets cost $20, and children’s tickets cost $15. How many adult tickets and how many children tickets did the group buy?

Write a system of equations. Then, solve the system algebraically.

Respuesta :

surjithayer10 surjithayer10

26-02-2020

Answer:

Step-by-step explanation:

20 a+5c=340

a+c=20

c=20-a

20 a+5(20-a)=340

20a+100-5a=340

15a=240

a=16

a=20-16=4

16 adult tickets

4 children tickets.

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