Ticket for a pantomime cost $80 for children. A party of 25 pays $143 in total. how many adults were there in the party?
can anyone answer this?
can anyone answer this
Answer:
There would be $30 left after he buys the game.
Step-by-step explanation:
To find this, subtract the amount he spent from the amount that he had.
$50 - $20 = $30.
1050 × 100 ÷ 30 would be what you plug into a calculator (if you have one) to get the answer.
100% = 3500.
Answer:
21 liters of the 12% solution and 4 liters of the 37% solution
Step-by-step explanation:
Represent the number of liters of the first solution as x and the second as y. Now, the total liters of iodine is going to be 16% of 25 = 4 liters of iodine, and the total liters of each solution is going to be 25. Now, we can setup two equations:
0.12x+0.37y = 4
x + y = 25
Multiplying the bottom equation by 0.12, we have
0.12x + 0.12y = 3
Subtracting, we have
0.12x+0.37y=4
-
0.12x + 0.12y = 3
= 0.25y = 1
= y = 4
= x = 25 - 4 = 21
