Answer:
You can't answer this question without knowing the total amount of money they all had in total.
.21 as a percentage is 21%
You can divide 7.98 by 21 then multiply by 100 which gives you an answer of 38.
Hope this helps :)
389 children and 224 adults were at the pool that day.
Step-by-step explanation:
Cost of one child ticket = $1.75
Cost of one adult ticket = $2.25
Total people = 613
Total receipts worth = $1184.75
Let,
Number of children = x
Number of adults = y
According to given statement;
x+y=613 Eqn 1
1.75x+2.25y=1184.75 Eqn 2
Multiplying Eqn 1 by 1.75
![1.75(x+y=613)\\1.75x+1.75y=1072.75\ \ \ Eqn\ 3](https://tex.z-dn.net/?f=1.75%28x%2By%3D613%29%5C%5C1.75x%2B1.75y%3D1072.75%5C%20%5C%20%5C%20Eqn%5C%203)
Subtracting Eqn 3 from Eqn 2
![(1.75x+2.25y)-(1.75x+1.75y)=1184.75-1072.75\\1.75x+2.25y-1.75x-1.75y=112.00\\0.50y=112.00](https://tex.z-dn.net/?f=%281.75x%2B2.25y%29-%281.75x%2B1.75y%29%3D1184.75-1072.75%5C%5C1.75x%2B2.25y-1.75x-1.75y%3D112.00%5C%5C0.50y%3D112.00)
Dividing both sides by 0.50
![\frac{0.50y}{0.50}=\frac{112.00}{0.50}\\y=224](https://tex.z-dn.net/?f=%5Cfrac%7B0.50y%7D%7B0.50%7D%3D%5Cfrac%7B112.00%7D%7B0.50%7D%5C%5Cy%3D224)
Putting y=224 in Eqn 1
![x+224=613\\x=613-224\\x=389\\](https://tex.z-dn.net/?f=x%2B224%3D613%5C%5Cx%3D613-224%5C%5Cx%3D389%5C%5C)
389 children and 224 adults were at the pool that day.
Keywords: linear equation, subtraction
Learn more about linear equations at:
#LearnwithBrainly
Answer:
75°
Step-by-step explanation:
Please see attached picture for full solution.