Answer:
20/22 or 10/11
Step-by-step explanation:
Just multiply the 11 by 2, then the 4 by 2 as well. and ad
With this information we can set up 2 equations:
x + y = 312 (# of tickets sold for adults + # of tickets sold to adults = 312)
12x + 5y = 2204 ( # of tickets sold for adults times $12 + # of tickets sold to adults times $5 = $2204)
Where x is how many tickets were sold to adults and y how many tickets were sold to children
Now we can solve this system of equations by substitution:
isolate y in the first equation to find its value and plug it in the second equation
x + y = 312
isolate y by subtracting x from both sides:
x - x + y = 312
y = 312 - x
Apply y = 312 - x to the second equation
12x + 5y = 2204
12x + 5( 312 - x) = 2204
12x + 1560 - 5x = 2204
7x + 1560 = 2204
Subtract 1560 from both sides to isolate x
7x + 1560 - 1560 = 2204 - 1560
7x = 644
Divide both sides by 7
7/7x = 644/7
x = 92
Now plugin 92 for x in the first equation to find the value of y
x + y = 312
92 + y = 312
subtract 92 from both sides
92 - 92 + y = 312 - 92
y = 220
x = 92, y = 220
92 tickets were sold to adults and 220 tickets were sold to children
Hope it helps :)
Branliest would be appreciated
Answer:
About 30 min.
Step-by-step explanation:
Since it takes 10 min to walk a half of mile, it will take 20 min to walk a whole mile.
Since we will be walking one and a half miles, it should take about 30 minutes.
Hope this helps.
The first time 6 reaches a ten is 30, which is times 5, so 5 erasers, and then easily 3 pencils, so the least amount is 5 erasers and 3 pencils :)
Answer:
(b = 5 StartRoot 3 EndRoot)
and
(b = Negative 5 StartRoot 3 EndRoot)
Step-by-step explanation:
we have
![f(b)=b^{2}-75](https://tex.z-dn.net/?f=f%28b%29%3Db%5E%7B2%7D-75)
we know that
The roots of the quadratic function are the values of x when the value of the function is equal to zero
so
For f(b)=0
![b^{2}-75=0](https://tex.z-dn.net/?f=b%5E%7B2%7D-75%3D0)
Solve for b
Adds 75 both sides
![b^{2}=75](https://tex.z-dn.net/?f=b%5E%7B2%7D%3D75)
take square root both sides
![b=(+/-)\sqrt{75}](https://tex.z-dn.net/?f=b%3D%28%2B%2F-%29%5Csqrt%7B75%7D)
Simplify
![b=(+/-)5\sqrt{3}](https://tex.z-dn.net/?f=b%3D%28%2B%2F-%295%5Csqrt%7B3%7D)
therefore
(b = 5 StartRoot 3 EndRoot)
and
(b = Negative 5 StartRoot 3 EndRoot)