12w-27 = -34+14w
We need to keep variables on one side and constant on other side . Here variables are 12w and 14w and constants are -27 and -34 .
So we need to move -34 to left side and 12 w to right side . And for that, we need to add 34 to both sides and subtract 12 w to both sides.
12w-27+34-12w=-34+14w+34-12w
7= 2w
Now we need to get rid of 2. So we divide both sides by 2 , and on doing that, we will get
![w=\frac{7}{2}](https://tex.z-dn.net/?f=%20w%3D%5Cfrac%7B7%7D%7B2%7D%20%20)
Answer:
Step-by-step explanation:
5*5*5*2
The number must end in 2 or 4.
1 3 and 5 will give you an odd number if either is at the end.
The permutation formula does not lend itself to this problem. That is because repetition is allowed. So 5554 is a possible answer.
You can choose any one of 1 to 5 for the first place.
1 to 5 in the second place independent of what you choose for the first place.
The only thing restricting you is the last place. It must be 1 of 2.
I suppose you could use 2P1 for that.
5 * 5 * 5 * 2P1
Simplifying
1.2x + 3.7 = 2.2x + -4.5
Reorder the terms:
3.7 + 1.2x = 2.2x + -4.5
Reorder the terms:
3.7 + 1.2x = -4.5 + 2.2x
Solving
3.7 + 1.2x = -4.5 + 2.2x
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-2.2x' to each side of the equation.
3.7 + 1.2x + -2.2x = -4.5 + 2.2x + -2.2x
Combine like terms: 1.2x + -2.2x = -1x
3.7 + -1x = -4.5 + 2.2x + -2.2x
Combine like terms: 2.2x + -2.2x = 0.0
3.7 + -1x = -4.5 + 0.0
3.7 + -1x = -4.5
Add '-3.7' to each side of the equation.
3.7 + -3.7 + -1x = -4.5 + -3.7
Combine like terms: 3.7 + -3.7 = 0.0
0.0 + -1x = -4.5 + -3.7
-1x = -4.5 + -3.7
Combine like terms: -4.5 + -3.7 = -8.2
-1x = -8.2
Divide each side by '-1'.
x = 8.2
Simplifying
x = 8.2
9514 1404 393
Answer:
- $6.88
- 2.5 pounds
Step-by-step explanation:
1. In this case, it appears that "some" means "4". The total cost of 4 place mats and 4 napkin rings is apparently ...
$17.16 +10.36 = $27.52
Then the total cost of 1 of each is 1/4 this amount, or ...
$27.52/4 = $6.88
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2. The average of three numbers is their sum, divided by 3.
(2.4 + 1.9 + 3.2)/3 = 7.5/3 = 2.5
Brian lost an average of 2.5 pounds per week.