Answer:
380 pages
Step-by-step explanation:
because if 30% equals 300 means 38% equals 380
1. s-13=63 76
2. m-7=73 80
3. 8+m=17-10 0
4. 17+m=80 63
5. Q+25=50-11 14
6. n-18=74 92
7. n+6=82 76
8. n+3=77 74
9. 8x=72 9
10. 2x=15+9 12
8.76582 × 10 to the 3rd power, that's how many hours there are in a year using scientific notation.
Let's say x = full price tickets
Let's say y = student tickets
We can write two equations:
From "585 tickets were sold" we can make the equation:
x + y = 585
And from "Full-price ticket is $2.50 and student ticket is $1.75 and total receipts is $1,217.25"...we can make the equation:
2.50x + 1.75y = 1,217.25
So now we can use substitution to find our answer...since we only have to find how many student tickets...we will solve the first equation for x so we can plug that into the 2nd equation to solve for y.
x + y = 585
x + y - y = 585 - y
x = 585 - y
Now we plug that into our 2nd equation: 2.50 (585 - y) + 1.75y = 1217.25
Distribute your 2.50
1462.5 - 2.50y + 1.75y = 1217.25
Add the y's: 1462.5 - 0.75y = 1217.25
Subtract 1462.5 from both sides:
1462.5 - 0.75y - 1462.5= 1217.25 - 1462.5
-0.75y = -245.25
Divide both sides by -0.75:
y = -245.25/-0.75
y = 327
There were 327 student tickets :)
Answer:
70
Step-by-step explanation:
