We know the area of the middle rectangle is 48 (length * width). removing that rectangle leaves us with two semicircles. you can combine those semicircles to be the equivalent of one circle. the area for a circle is r^2 * pi. we know the diameter is 4 because that is where we cut the semicircles. radius is half the diameter, so r is 2. 2^2 is 4, 4* pi is 12.56. add 12.56 (area of semicircles) with 48 (area of rectangle) and we get 60.56
James and Fred because 12/3 is equivalent to 4/1 and 16/4 is equivalent to 4/1
67:938
But when you reduce this ratio your final answer is 1:14
Step-by-step explanation:
I assume the question is asking for Eric's grandfather age now.
Let Eric's age now be x. Then Eric's grandfather age now is (x + 55).
In 7 years, Eric's age will be (x + 7) and Eric's grandfather age will be (x + 62).
We know that (x + 62) = 6(x + 7).
x + 62 = 6x + 42
5x = 62 - 42 = 20
x = 4.
Answering the question: Eric's grandfather age now is (4 + 55) = 59 years old.
