Answer: Cost of tickets for adults = $22
Cost of tickets for children = $15
Total number of tickets sold = 732
Total receipts = $12,912
Let x be number of adult ticket's sold and y be the number of child ticket's sold.
Therefore, we have:
--------------- equation 1
Also, we have:
Now, let's substitute the value of x:
Now, let's substitute the value of y=456 in equation 1, we have:
Therefore, the number of child ticket's sold is 456 and number of adult ticket's sold is 276
<span><span>40. </span>115m
= An athlete trains per day
690m = total minutes of athlete’s training
d = number of days
=> 115(d) = 690
Now, the equation would be, 115 minutes per day to be multiplied by d or the
number of days to get 690minutes in all.
=> 690 / 115 = 6
=> 115 (6) = 690
d = 6
Therefore, an athlete trains 115 minutes in 6 days to get the total of 690
minutes in all.
</span>
Answer:
<h3>A. no solution</h3>
Step-by-step explanation:
<u>Given:</u>
Isolate the term of x and y from one side of the equation.
<h3>x-y=-4 and -2x+2y=6</h3>
x-y=-4
<u>First add by y from both sides.</u>
x-y+y=-4+y
<u>Solve.</u>
x=-4+y
<u>You have to substitute of x=-4+y.</u>
<u>Solve.</u>
<u>Use the distributive property.</u>
<u>Distributive property:</u>
⇒ A(B+C)=AB+AC
-2(-4+y)
Multiply expand.
-2*-4=8
-2*y=-2y
Rewrite the expression down.
8-2y
8-2y+2y=6
-2y+2y=0
8=6
- <u>Therefore, the correct answer is "A. No solution".</u>
I hope this helps, let me know if you have any questions.
Answer:
52.30472
Step-by-step explanation:
A=πr(r+h2+r2)=
π·2·(2+62+22)≈
52.30472