Since you keep proportional dimensions, the proportion between the old and new dimensions must be the same. So, if we call the new height 
, the preservation of the width/height ratio is written as
Solving the proportion for yields
Answer:
Elias Nebiyu gives seven breads for his eight friends and he continues this give away for three days.
Step-by-step explanation:
3x 7/8 result is attached above.
Answer: 2xy
Step-by-step explanation: We know that x%5E2+%2B+y%5E2 must be the longest side of the triangle (it cannot be 2xy, I will demonstrate why afterwards). By the Pythagorean theorem,
. Therefore this is a right triangle.
The only "assumption" we had to make was that x%5E2+%2B+y%5E2+%3E+2xy, but this is easy to prove. By the AM-GM inequality, %28x%5E2+%2B+y%5E2%29%2F2+%3E=+sqrt%28x%5E2y%5E2%29+=+xy. Multiplying both sides by 2, x%5E2+%2B+y%5E2+%3E=+2xy. Equality occurs only when x+=+y, but this cannot be true, so x%5E2+%2B+y%5E2 is strictly greater than 2xy.
Answer:
305 feet
Step-by-step explanation:
you only need to replace the given data into the equation.
the value (y) is the one you are being asked to find and (x) is the given one
so:
y=8.5(x)-77.5
y=8.5(45)-77.5
y=382.5-77.5
y=305
since the units are given, you instantly know that y=305feet
