Answer:
Step-by-step explanation:
the expression we have is:

To find an equivalent expression, it would be helpful to express 1/3 so that it has a 12 in the denominator:

so we substitute this:

and now we have 1/12 in both terms :

so we can factor it (we take it out of each term: in the first we are left with -x and in the second with -4):
the equivalent expression is:
Answer:
4.19 inches
Step-by-step explanation:
Your goal is to find the circumference of the donut and then divide that by 3 to get 1/3 of the outer edge of the donut.
Circumference is 2
r
The diameter (double the radius) is 4, so radius (r) is 2
2 * pi * 2 = 4 pi = 12.57 (round to hundredth)
12.57/3 = 4.19
keep in mind that dividing by 3 is the same as multiplying by 1/3
Answer:
8 years old
Step-by-step explanation:
46 - 14 = 32 inches of growth
32 inches / 4 inches = 8 years
4b+3s=72
6b+3s=96
Multiply the second equation by -1
-6b-3s=-96
Now you can cross out the +3s -3s
-2b=-24
Divide both sides by -2
b=12
s=8
So blouses cost $12 each and skirts cost $8 each