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SpyIntel [72]
3 years ago
14

Movie tickets for an adult and three children cost $20. an adult's ticket costs $2 more than a child's ticket. find the cost of

an adult's ticket.
Mathematics
1 answer:
valkas [14]3 years ago
4 0
A- price of adult's ticket
c- price of children's ticket

a+3c=20
a=c+2
c=a-2

a+3(a-2)=20
a+3a-6=20
4a=26
a=6.5

The cost of an adult's ticket is $6.50
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Answer:

Price = 20, Amount = 14

Step-by-step explanation:

A = Amount of Mangoes

P = Price for 1 Mango

P = A + 6

280 = P * A

insert A+6 for P

280 = (A+6) * A

280 = 6A + A²

280=1*a^2+6*a  | Vertausche beide Seiten der Gleichung.

1*a^2+6*a=280  | quadratische Ergänzung: ergänze auf beiden Seiten (3)^2

1*a^2+6*a+(3)^2=3^2+280  | Rechne 3 hoch 2 aus.

1*a^2+6*a+(3)^2=9+280  | addiere 9 und 280

1*a^2+6*a+(3)^2=9+280  | Fasse die rechte Seite mit Hilfe der binomischen Formel zusammen.

1*(1*a+(3))^2=289  | Auf beiden Seiten Quadratwurzel ziehen.

1*a+(3)=+-*289^0.5  

1*a_1+(3)=289^0.5  

1*a_1+3=289^0.5  | Ziehe die Wurzel aus 289

1*a_1+3=17  | -3

1*a_1=14  

8 0
3 years ago
Lisa's favorite chocolate candies are wrapped in the shape of a triangular prism with shiny gold paper as shown below. if all si
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It is 96.
triangular part:
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square part:2*c + 2*b = 7*2 + 5 * 2 = 24 = e
since you have 2x triangular and 3x squares

2*d+ 3*e = 96
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Answer:

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Answer:

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