The answer is 124 deg. because all the equation is 3x+40=7x-72 and when you solve for x, you get 28. Then all you have to do is plug 28 into the equation 3x+40 and you get 124..:)):
Answer:
The length of rectangular pool is 167 meters and the width is 40 meters
Step-by-step explanation:
Let
x ----> the length of rectangular pool
y ----> the width of rectangular pool
we know that
The perimeter of rectangle (rectangular pool) is equal to
we have
so
simplify
----> equation A
----> equation B
solve the system by substitution
substitute equation B in equation A
solve for y
Find the value of x
therefore
The length of rectangular pool is 167 meters and the width is 40 meters
Answer:
So, the first one is not proportional and therefore has no multiplier.
You are right on the second on both counts!
Step-by-step explanation:
You just need to divide the x's by the y's (individually) in order to determine what they are multiplied by. And the answers you get for the first one will be 5, 6, and 7. Because the numbers are different, they are not proportional.
The surface area of a cube = side * side *6 =
area = side^2 * 6
486 = side^2 * 6
side^2 = 486 / 6
side^2 = 81
side length = 9 inches
