mooreadrian412
12.02.2021 •
Mathematics
there were 62 people in the movie theater for the matinee. ticket sales for that showing were $364. if adult tickets cost $7 and children tickets cost $3.50, how many of each were at that show. please solve with systems of equations.
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Ответ:
Step-by-step explanation:
a+c=62, c=62-a
7a+3.5c=364, using c found above gives you
7a+3.5(62-a)=364 expand left side
7a+217-3.5a=364 group like terms on left side
3.5a+217=364 subtract 217 from both sides
3.5a=147 divide both sides by 3.5
a=42, since c=62-a
c=62-42=20
So 20 children and 42 adult tickets were sold.
Ответ:
Hello Carousel!
Solve the integral.First, let's take I as ⇨ .
Let, x + 1 = m² => dx = 2mdm.
Now, divide the numerator & denominator by m²....we'll get it as...
Now, let m - 1/m be t => (1 + 1/m²) dm = dt
We know, ...therefore...
Now, substitute the value of 't' in eq. 1..we'll get..
Now, substitute the value of 'm' in eq. 2...we'll get...
The correct answer is Option B.__________________
The question is really long & tricky but once you get the hang of it you'll be good. Good luck!__________________
Hope it'll help you!
ℓu¢αzz ッ