Fill in each slot in the square with variables <em>a</em>, <em>b</em>, <em>c</em>, <em>d</em>, and <em>e</em>, in order from left-to-right, top-to-bottom. In a magic square, the sums across rows, columns, and diagonals all add up to the same number called the <em>magic sum</em>.
The magic sum is -3.9, since "diagonal 2" (bottom left to top right) has all the information we need:
3 + (-1.3) + (-5.6) = -3.9
Use this to find the remaining elements
<em>a</em> + <em>b</em> + (-5.6) = -3.9
<em>c</em> + (-1.3) + <em>d</em> = -3.9
3 + <em>e</em> + 0.02 = -3.9
<em>a</em> + <em>c</em> + 3 = -3.9
<em>b</em> + (-1.3) + <em>e</em> = -3.9
(-5.6) + <em>d</em> + 0.02 = -3.9
- diagonal 1 (top left to bottom right):
<em>a</em> + (-1.3) + 0.02 = -3.9
You will find
<em>a</em> = -2.62
<em>b</em> = 4.32
<em>c</em> = -4.28
<em>d</em> = 1.68
<em>e</em> = -6.92
The fixed cost is $150, while the per-student cost is $6.
Answer:
multiply by 2
Step-by-step explanation:
G, H, K -> your multiply by 2 to get G',H',and K'
15·x²=15·x so
x²=x
x·x=x with x≠0 than x must be 1
x=1
Answer:
Step-by-step explanation:
we know that
1 mile=63,360 inches
step 1
Find the circumference of the wheels
we have
-----> the radius is half the diameter
substitute
assume
Remember that
The circumference of the wheels represent one revolution
Convert 59 miles per hour to inches per minute
using proportion find the number of revolutions
therefore
substitute
