3n+8=23 answer and the work to show the answer please

Answers

Answer 1

Answer:

Answer: n = 5

Step-by-step explanation: To solve for n, we must first isolate the term containing n which in this problem is 3n.

Since 8 is being added to 3n, we subtract 8 from both sides of the equation to isolate the 3n. On the left, the +8 and -8 cancel out and on the right 23 - 8 is 15.

So we have 3n = 15.

Now we can finish things off by just dividing both sides of the equation by 3. On the left the 3's cancel and on the right 15 divided by 3 is 5 so n = 5 and you can check your answer by plugging 5 back in for n in the original equation which is shown below in bold.

3(5) + 8 = 23 or 15 + 8 = 23.

Answer 2

Answer:

Answer:

n = 5

Step-by-step explanation:

3n + 8 = 23

- 8 - 8 Subtract 8 from both sides

3n = 15

n = 5 Divide both sides by 3

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Write a numerical expression for each verbal phrase.the total number of coins Kyle has if he has 12 quarters and 20 dimes
Question 5 options:

12 × 20

20 – 12

12 + 20

20 ÷ 12

Answers

$\huge\boxed{12+20}$

You have $12$ of one type of coin and $20$ of another type of coin.

To find the total number of coins, you need to add the two values together.

Answer:

The correct option is C) 12 + 20.

Step-by-step explanation:

Consider the provided phrase.

The total number of coins Kyle has if he has 12 quarters and 20 dimes

Use "+" sign for and .

He has 12 quarters and 20 dimes can be written as:

$12+20$

The total number of coins are the sum of 2 quarters and 20 dimes

Thus, the required expression is

$12+20$

Hence, the correct option is C) 12 + 20.

Brad works at a grocery store after school. Because he’s a part-time employee, his family receives a 5% discount on all items purchased at the store. Brad’s father recently bought a total of $84.96 worth of groceries. After deducting the amount of the discount, how much did Brad’s father actually pay for these items?

Answers

Answer: Brad's father actually pay $80.712 for these items.

Step-by-step explanation:

Since we have given that

Worth of groceries = $84.96

Rate of discount = 5%

Amount of discount would be

$0.05* 84.96\n\n=\$4.248$

Amount after deducting discount would be

$84.96-4.248\n\n=\$80.712$

Hence, Brad's father actually pay $80.712 for these items.

5% in decimal form is .05
Now you need to multiply $84.96 by .05
$84.96 * .05= $4.248 or $4.25
Now that you know how much was discounted all you need to do is subtract the discount from the original price of $84.96
$84.96-$4.25= $80.71 <---- Answer

A Pudding recipe calls for 0.355 liter of milk. Nati has 0.5 liter of milk at home. Does she have enough milk for the pudding recipe?

Answers

Yes because she has 0.500 liters of milk and only needs 0.355

David invested $1000.ppm what would that money grow to the 18 months at 5.5% interest rate?

Answers

David invested $1000. Let's solve for the amount of money to grow to the 18 months at 5.5% interest rate?
Let's assume that this 5.5% interest is per month.
=> 1 000 dollars * 0.055 = 55 dollars per month
=> 55 * 18 months = 990 dollars in 18 months.

A jogger ran 6 laps in eight minutes. How many laps did he run in 1 minute

Answers

6 laps - 8 min
x laps - 1 min

$x=(1\cdot6)/(8)\nx=0.75$

Two problems here- 1) Find the total cost to the nearest cent, $100 dinner; 20% gratuity 2) Find the total cost to the nearest cent, 12300 car; 5% sales tax

Answers

In both of these problems you are asked to find a percentage of another number and then add it to that number... In math

"is" means =
"of" means ×

1) In the first problem 20% of 100 is, means
20% × 100 =
.20 × 100 = $20

now add it to the cost of the meal.

100 + 20 = $120 (final cost)

___________________

2) In the second problem 5% of 12300 is, means
5% × 12300 =
.05 × 12300 = $615

add this to the original price for the final cost...

12300 + 615 = $12,915

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