Rotate the hexagon so the sides line up to make it easier
then set up a proportion
x/x+1 = 10/30
30x = 10x + 10
20x = 10
x = 1/2
You move the decimal over twice to get 63% and then put it over 100, 63/100 to get a fraction
Answer:
The number of penguins on the island is 17 and the number of bears on the island is 4.
Step-by-step explanation:
We are given that an island's only residents are penguins and bears, and if there are 21 heads and 50 feet on the island.
Let the number of penguins on the island be 'x' and the number of bears on the island be 'y'.
Also, we know that bears and penguins both have one head, and the bear has 4 feet and the penguin has 2 feet.
<u>So, according to the question;</u>
- The first condition states that there are 21 heads, that means;
x + y = 21
x = 21 - y ---------------- [equation 1]
- The second condition states that there are 50 feet on the island, that means;
2x + 4y = 50
x + 2y = 25
21 - y + 2y = 25 {from equation 1}
y = 25 - 21
y = 4
Now, putting the value of y in equation 1, we get;
x = 21 - y
x = 21 - 4 = 17
Hence, the number of penguins on the island is 17 and the number of bears on the island is 4.
Sine = (opposite)/(hypotenuse).
Cosine = (adjacent)/(hypotenuse).
Tangent = (opposite)/(adjacent).
Fill in the numbers. They're all on the drawing . Then memorize these definitions. You'll need them as long as you're in school, and possibly after.
Answer:
50x^4 +25x^3 +103x^2 +25x +49
