Answer:
13
Step-by-step explanation:
A coefficient is the contestant value (a number) placed before a variable to be multiplied. A coefficient is multiplied by it's neighboring variable. In '13a', 13 is being multiplied by a.
13 will be the coefficient in 13a.
Answer: x=14.4
Step-by-step explanation:
Answer:

Step-by-step explanation:
<em>Hey there!</em>
To simplify we need to combine like terms and use the communicative property,
34x + 6 = 1 + 13x
-13x to both sides
21x + 6 = 1
-6 to both sides
21x = -5
Divide both sides by 21
x = -5/21
<em>Hope this helps :)</em>
Answer:
She would want to leave a 20% tip on the original $100. This means that the amount that she would leave as tip is
20/100 × 100 = 0.2 × 100 = $20.
Therefore, the total cost of Dakota's meal including the tax and the tip would be
100 + 13 + 20 = $133
Step-by-step explanation:

[scomposition of 45]

[9 = 3^2, must use this notation (not 3*3)]

[We appy one of the proprieties of square roots]

[now we semplify: we must take out as much as possible all the elements under roots]
[to do that, we must divide the esponent of each element with the index of square roots (2)]
so
, 2/2 = 1
, 1/2 = 0 with 1 of rest
, 5/2 = 2 with 1 rest
[well, after do that, we can take out the elements under tbhe square roots!]
The quotient of each division is the esponent of the element out of the root
The rest of each division is the esponent of the element under the root
so:
(quotient = 1, see the first operation) *
(rest = 1, see the second operation) *
(quotient = 2, see the third operation) *
(rest = 1, see the third operation)
The final result is:
3 (=3^1) * a² * √5 * √a
3a²√5a
It's more intuitive and easy, but the explanation (necessary) is very long. If you have other questions, ask me here in the comments! Also sorry for my english, not so good!