She bought 54 child tickets and 19 adult tickets.
Step-by-step explanation:
No. of tickets purchased = 73
Cost of tickets = $771
Cost of one child ticket = $9
Cost of one adult ticket = $15
Let,
Child ticket = x
Adult ticket = y
According to given statement;
x+y=73 Eqn 1
9x+15y=771 Eqn 2
Multiplying Eqn 1 by 9;

Subtracting Eqn 3 from Eqn 2;

Dividing both sides by 6;

Putting y=19 in Eqn 1

She bought 54 child tickets and 19 adult tickets.
Keywords: linear equations, subtraction
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Answer:
I think there is a typing error it should be 214 ml
Step-by-step explanation:
1 litre = 1000 ml
5 litre= 5000ml
5000- 214= 4786
hope it helps :)
Answer:
idk what you asking but if it solve for for x it going be no solution
Answer:
0.2 = y
Step-by-step explanation: You have to isolate y
<u> 7 = 35y</u>
35 35
0.2 = y
RECHECK:
7 = 35y
7 = 35(0.2)
7 = 7
YES, this is a true statement.
Hope this helps you!!! :)