Answer:
Her average speed is 48 miles per hour.
Step-by-step explanation:
1. You have to do order of operations in reverse (PEMDAS in reverse)
2. Divide 36 by 3/4 which would be to multiply by the reciprocal (multiplying 36 by 4/3)
3. The answer would then be r=48
If the numerator is greater than the denominator in a faction, then the fraction is called an Improper Fraction.
Answer:
x = 50
Step-by-step explanation:
The legs are perpendicular and so the triangle is a right triangle.
Using the Pythagorean Theorem, we get
48^2 + 14^2 = x^2 = 2304 + 196 = 2500. Then x is the positive square root of 2500, which is 50.
x = 50
Answer:
Step-by-step explanation:
GIVEN: A farmer has of fencing to construct a rectangular pen up against the straight side of a barn, using the barn for one side of the pen. The length of the barn is .
TO FIND: Determine the dimensions of the rectangle of maximum area that can be enclosed under these conditions.
SOLUTION:
Let the length of rectangle be and
perimeter of rectangular pen
area of rectangular pen
putting value of
to maximize
but the dimensions must be lesser or equal to than that of barn.
therefore maximum length rectangular pen
width of rectangular pen
Maximum area of rectangular pen
Hence maximum area of rectangular pen is and dimensions are