316 cm²
A polygon is given to us and we are interested in finding out the area of the polygon .
- Here we can see that the polygon is made up of a rectangle and a triangle .
We can separately find out their areas and then add them up to find out the area of the polygon.
So that ,
- We know that the area of rectangle is length × breadth and that of triangle is 1/2 × base × height . So ,
- Here height of triangle can be calculated by subtracting the lengths 18cm and 14cm and its base can be calculated by subtracting CD from BD ( see figure in attachment.)
The answer to your question is true
252 cents for 14 pencils and 759 cents for 11 pens. Together its 1011 cents or $10.11
Since the question is asking for the no. of coins each, we can represent the numbers with variables.
number of quarters = x
number of dimes = 6x (because there as 6 times as many dimes as quarters)
Next we can multiply the variables by the value of each coin.
25x + 6(10)x = 1275
25x + 60x = 1275
(make sure the expressione quals 1275, not 12.75. A dime is not 10 dollars, nor is a quarter 25 dollars).
85x = 1275
x = 15
Now that we have the value for x, plug it back in.
Andrea has 15 quarters and 90 dimes.
Answer:
12 meters
Step-by-step explanation:
The area of a parallelogram can be found using:
a=bh
We know that the base is 7 meters, and the area is 84 square meters. Therefore, we can substitute 7 in for b, and 84 in for a.
84=7h
We want to find the height. To do this, we have to get h by itself. Since h is being multiplied by 7, divide both sides by 7.
84/7=7h/7
12=h
So, the height is 12 meters
