"Break into triangles, then add. In the figure on the right, the polygon can be broken up into triangles by drawing all the diagonals from one of the vertices. If you knowenough sides and angles to find the area of each, then you can simply add them up to find the total." -<span>www.mathopenref.com/polygonirregulararea.html</span>
18 dollars because you do 4 x 450 and you get 1800 and that’s 18 dollars
Rewrite the fractions so they have a common denominator
3/4 = 15/20
Now add:
4 15/20 + 7 11/20 = 11 26/20
26/20 simplifies to 1 3/10
11 + 1 3/10 = 12 3/10 total minutes
Answer:
23
Step-by-step explanation:
Let his current age = x
Now if you add 46 to that, you will get x + 46.
x + 46
At which point he will be 3 times as old as he is now
x + 46 = 3x Subtract x from both sides.
x-x + 46 = 3x-x Combine
46 = 2x Divide by 2
46/2=2x/2 Do the division
23 = x
He is 23 right now
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It might be a little easier to see if you represent the situation a little more literally.
3x - 46 = x The answer comes to the same thing. You might think about which way you want to do it.
