Answer:
$2
Step-by-step explanation:
Let, price of individual child ticket is $x, and price of individual adult ticket is $y.
Now, on Friday we can write an equation is 55x+20y=200....(1).
and on Saturday we can write an equation is 72x+36y=306.....(2).
so, Equation 1: 55x+20y=200
Equation 2: 72x+36y=306
now, we are going to solve both equations.
after solving you will find x=2 and y=4.5
Hence, we can say that the cost of child ticket is $2, and the cost of adult ticket is $4.50.
Alright, we just need to reverse some operations done unto 43. Subtract the 15 from her collection.
43 - 15 = 28.
Sold half? Times half.
28 * 2 = 56
Make sure it works:
56 - 28 = 28. 28 + 15 = 43.
She had 56 cards to start with.
Answer:
340
Step-by-step explanation:
Answer:
option d -1 is the answer
The HL theorem is a special case of the SSS postulate.