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ziro4ka [17]
4 years ago
12

PLEASE HELP!!!

Mathematics
1 answer:
Nuetrik [128]4 years ago
3 0

Answer:

+2Na

Step-by-step explanation:

its like algebra kinda when you have a 3y or 2x your Na ion is multiplied by 2 becoming 2Na

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Please answer the question in the photo​
Andrews [41]

Answer:

its really blurry can u post a picture with a clearer photo

Step-by-step explanation:

7 0
3 years ago
James is playing his favorite game at the arcade. After playing the game 33 times, he has 88 tokens remaining. He initially had
Vlad1618 [11]

Answer:

t(g)=-4g+20

Step-by-step explanation:

Let g be the number of games James plays and t be the number of tokens James has.

We will write our function's formula in slope-intercept form of equation.

y=mx+b, where,

m = Slope of line,

b = y-intercept.

We have been given that initially James has 20 tokens. This means that before playing the games James has 20 tokens or at g equals 0 t equals 20. So our y-intercept will be 20.

We are also told that after playing the game 3 times, he has 8 tokens remaining.

Let us find the slope of line using points (3,8) and (0,20).

m=\frac{y_2-y_1}{x_2-x_1}, where,

m = Slope of line,

y_2-y_1= Difference between two y-coordinates,

x_2-x_1= Difference between x-coordinates of same two y-coordinates.

Upon substituting coordinates of our given points we will get,

m=\frac{8-20}{3-0}

m=\frac{-12}{3}

m=-4

So the slope of our line will be -4.

We can see that number of remaining tokens are dependent on number games James plays, this mean that t is a function of g.

Upon substituting our values in slope-intercept form of equation we will get,

t(g)=-4g+20, where, t(g) represents number of tokens James has left after playing g games.

Therefore, our required function will be t(g)=-4g+20.

4 0
3 years ago
Sales tax added to a bill of $38 is $3.04. What is the sales tax rate?<br> .
kipiarov [429]

Answer:

8%

Step-by-step explanation:

(X*38)/100=3.04=>x= (3.04*100)/38=8

3 0
3 years ago
A deck of ordinary cards is shuffled and 13 cards are dealt. What is the probability that the last card dealt is an ace?
alexandr1967 [171]

Answer:

The probability that the last card dealt is an ace is \frac{1}{13}.

Step-by-step explanation:

Given : A deck of ordinary cards is shuffled and 13 cards are dealt.

To find : What is the probability that the last card dealt is an ace?

Solution :

There are total 52 cards.

The total arrangement of cards is 52!.

There is 4 ace cards in total.

Arrangement for containing ace as the 13th card is 4\times 51!.

The probability that the last card dealt is an ace is

P=\frac{4\times 51!}{52!}

P=\frac{4\times 51!}{52\times 51!}

P=\frac{4}{52}

P=\frac{1}{13}

Therefore, the probability that the last card dealt is an ace is \frac{1}{13}.

4 0
3 years ago
What is the solution for C when 10 C minus f equals -13 + c d
andreyandreev [35.5K]

Answer:

C would be equal to (f - 13)/(10 - d)

Step-by-step explanation:

In order to find this, you must manipulate the equation so that the left side has every term with a c in it. Then you can isolate it by dividing and find what it is equal to.

10c - f = -13 + cd -----> Add f to both sides

10c = f - 13 + cd -----> Subtract cd from both sides

10c - cd = f - 13 ------> Pull out c

c(10 - d) = f - 13 -----> Divide by (10 - d)

c = (f - 13)/(10 - d)

8 0
3 years ago
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