Mary is incorrect. Perimeter is not proportional to area. An example which you can use is garden A is an 8 by 1 rectangle. The perimeter is 18 while the area is 8. Graden B is a 4 by 4 square. The perimeter is 16 (less than garden A) while the area is 16 (two times more than garden B).
<h2>answer:</h2>
There is only one sign changed in the whole equation so possibly the answer must be one. correct me if I'm wrong
The quadrilateral have equal opposite sides, for example:
Then, (4x + 6) must be equal to (7x - 3), and (4y - 3) is equal to (3y + 1), therefore
We can solve that equation for x
Hence, x = 3. Now let's solve the other equation
Then the value of y is 4.
Final answers:
x = 3
y = 4
R = k / t where r = speed, t = time and k is a constant
Given r = 66 when t = 66 so we have
66 = k / 66
so k = 66^2 = 4356
so when t = 55
speed r = 4356 / 55 = 79.2 mph
Answer:
6.78
Step-by-step explanation:
To find this you would have to just round the 3 in the hundredths place to the nearest rounding so that would be 0 so it would just simplify to 6.78
https://www.calculatorsoup.com/calculators/math/roundingnumbers.php
you can use this site to help you further :D
