Answer:
There were 343 children and 197 adults.
Step-by-step explanation:
In order to solve this problem, you can use an equation after identifying the important information, like that there were 540 people, the cost for a child is $1.25, the cost for an adult is $2.00, and admission fees totaled $822.75:
where c = number of children, and a = number of adults,
c + a = 540
1.25c + 2a = 822.75
Now, you need to solve this system of equations by isolating one of the variables. I'll isolate c by multiplying the first equation by 2 since it's easier:
2c + 2a = 1080
<u> - 1.25c + 2a = 822.75</u>
= .75c = 257.25
Now, you can multiply both sides by 4/3 to find c:
c = 257.25 × 4 ÷ 3
c = 343
So there were 343 children. Now you can find the number of adults by substituting 343 for c in the first equation:
where c + a = 540 and c = 343,
343 + a = 540
a = 197
So, there were 197 adults.
If it's complementary angles, its 45 degrees. If it's supplementary angles it's 90 degrees.
Answer:
Step-by-step explanation:
First, find the slope of the line:
The formula for finding the slope is:
Plug in the points:
= =
So now the equation is y = x + b
Now solve for b by plugging in one of the points:
(2,7)
y = x + b
7 = 2 + b
7 = + b
b =
So the equation will be
Answer:
10 us tons
Step-by-step explanation:
Answer:
15
Step-by-step explanation:
==15