Samantha bought 8 guppies and 18 goldfish.
<h3>How to find out how many guppies Samantha bought?</h3>
To know how many guppies Samantha bought, we must take into account the information we know and perform the following operations:
The above operation allows us to express how many fish of each species Samantha bought.
- 3x + 4y = 86
- 3(26 - y) + 4y = 86
- 78 - 3y + 4y = 86
The previous operation allows us to express the amount of fish of species X and Y that Samantha bought to spend $86.
Based on the above, we can infer that Samantha bought 8 guppy fish.
Note: This question is incomplete because the options are missing. Here are the options:
Learn more about equations in: brainly.com/question/2263981
Answer:
0.25
Explanation:
Since line AB = 5*sq root of 2, that tells us triangle ADB is an isoceles right triangle with legs=5. Therefore, triangle ACD is also an isoceles right triangle and so angle ACD (or B) = 45 degrees. One radian = 180/pi or 57.2958. Therefore angle ACB in radians is 45/57.2958 = .7854 = H*Pi. So H = .7854 / Pi = .7854 / 3.14159 = .0.25