what operation is this equation ??

Answers

Answer 1

You gonna minus the total of both items by 30

Answer 2

First step is to line up both items
15.80
7.84
Which equals $23.64
Then subtract this amount from $30
30.00
23.64
Equals $6.36
So the change will be $6.36

Related Questions

How do I add a percentage (%) tip to a total of a bill? (Ex - Total : 3.00 with a %18 tip)

Answers

To calculate a gratuity or tip on any calculator it is a simple multiplication. In general, the tip amount is the cost times 0.xx and your total including tip, is the cost times 1.xx where xx = the percent you want to leave. If you want to leave a 20% tip, multiply the cost by 0.20 to get the tip amount or multiply the cost by 1.20 to get the total including tip. If you want to leave a 18% tip, multiply the cost by 0.18 to get the tip amount or multiply the cost by 1.18 to get the total including tip.

Let's say you and a friend had dinner that cost $26.50. You had good service and want to leave an 18% gratuity. Put the percentage in decimal form (0.18) then multiply the cost by this number.

26.50 * 0.18 = 4.77. So your tip is $4.77.

An easy way to get the total amount, dinner plus tip, is to multiply the total by 1.18. 26.50 * 1.18 = 31.27. This works mathematically because you want to know your original cost plus the tip which is written as 26.50 + (26.50 * 0.18) = ? Factoring out the 26.50 from this equation you get 26.50 * (1 + 0.18) = 26.50 * 1.18.

How to calculate a tip in your head

You can get a good approximation of a tip by doing it in your head this way.

You can find 10% of your bill by moving the decimal one place to the left. If 26.50 is 100% then 10% is 2.65. Since 20% is 2 times 10%, 20% of the bill is 2.65 + 2.65 = 5.30. Now you know the tip you could leave ranging from poor to good, $2.65 to $5.30. To find 15%, halfway in between, we know 15% is 10% plus 1/2 of 10% (5%). 2.65 plus about 1.30 is 3.95.

Now you have

10% is 2.65 - by moving decimal 1 place left

15% is 3.95 - 10% + 1/2 of 10%

20% is 5.30 - 10% * 2

This is plenty of information to make a good guess at the tip amount you should leave. If you decide on about 18%, 4.50 to 5.00 would be a safe guess.

Hope this helps!!! Please mark Brainliest because no matter what you are the Brainliest of all!

Answer:

put to percentage as a decimal (ex. 0.18) then you add that to the total amount

Maggie wants to join a tennis club. City Tennis Center charges $150 for the initial membership and $30 each month. Urban Tennis Club charges $50 for the initial membership and $40 each month.

Maggie will join a tennis club for 1 year. Which club should Maggie join if she wants to spend the least amount of money? Use mathematics to explain how you determined your answer.

Answers

Answer:

City

Step-by-step explanation:

Cost for 12 months

City

150 + (30 * 12) = 510

Urban

50 + (40 * 12) = 530

City is $20 less for the year

Uhm So I am doing this math thing that's like important and I need help because I failed the first time and it brought done my grade so like can someone help because I want to make it to my next grade thank you very much, please help and do not say it was "too blury" because I am as blind as a bat without glasses so if it's some how blury well then I don't know what to say.But I am sorry that was meant to be respectful anyways please help.I'd appreciate it.

Answers

X is less than or equal to 4
And here is it on the graph line

x is less than or equal to 4

Someone please help I need this ASAP Please.

Answers

Answer:

i think 2. is : 1and 3. is

Step-by-step explanation:

Which formulas can you use to calculate the volume of a rectangular prism? Check all that apply.
V = one-half b h
V = 2l + 2w
V = Bh
V = lw
V = lwh
V = s2

Answers

The answers are V = Bh and V = lwh

You can either use the third or the fifth

A restaurant customer left $1.40 as a tip. The tax was 5% and the tip was 20% of the cost including tax. a. Which information is not needed to compute the bill after tax and tip? b. What was the total bill?

Answers

Answer:

Step-by-step explanation:

(10 x 100) x = 0.70. (10÷ 10) 100 ÷ 10. = 1/10 x = 0.70. X 0.70 x 10. X= 7.00

The total bill would be 7%

20 points to whoever gets this right <3 ( need a equation )

Nabhitha buys cookies and onions at the store.
She pays a total of $60.39.
She pays a total of $4.79 for the cookies.
She buys 8 bags of onions that each cost the same amount.

Write and solve an equation which can be used to determine xx, how much each bag of onions costs.

Answers

Answer:

8x+4.79=60.39

Step-by-step explanation:

If you want this solved,

60.39-4.79 = 55.6

55.6/8 =6.95

One bag of onions = $6.95

(just for extra because I'm tired)

Answer:

19.5°

Step-by-step explanation:

The sum of any 3 angles of a triangle is 180.

That being so 33.5 + 127 + F = 180.

33.5 +127 + F - 33.5 = 180 - 33.5

127 + F = 146.5

127 + F - 127 = 146.5 - 127

F = 19.5

Laura bought 2 CDs that were each the same price. Including sales tax, she paid a total of $30.20. Each CD had a tax of $1.20. What was the price of each CD before tax?

Answers

Answer:

$13.90

Step-by-step explanation:

1.20 *1.20= $2.40 tax

30.20-2.40= $27.8 (both cds)

27.8/2 = $13.90 per CD

There is a closed carton of eggs in Mai's refrigerator. The carton contains e eggs and it can hold 12 eggs. What does the inequality e<12 mean in this context?

Answers

Answer:

That the number of eggs (e) in the carton is less than 12

Step-by-step explanation:

Mr.Willams' physical education class last 7/8 hours.
Part of 7/8 hour Class
playing game: 1/2
instruction:1/5
warm-up and cool-down
How many minutes are not spent on instruction? Explain.

Answers

Answer:

40.5 Please mark me as brainliest

Step-by-step explanation:

x=(7/8)-(1/5)

x=(7*5-1*8)/40

x=(35-8)

x=(27/40)

60 min= 1hr

(27*60)/40

=40.5 min

Answer : 40.5

Step-by-step explanation:

Help me answer this nonsensical question!!!!!

Answers

Answer:

Step-by-step explanation:

(if he gathers 4 coins each month you will need the variable by it. he was given 20 coins so it is added on to how many coins he has. plus it would be greater than because the question asked when he will have MORE than 50 coins.)

The answer to this problem is D.

We know that each month, he gets 4 coins to add to his collection so that would represent 4m. And we know that he started with 20. The last thing that we know is that we will need a greater than symbol to represent more than 50. Therefore the equation is
20 + 4m > 50.

Have a wonderful day ❤️

Only answer if you know the correct answer! Thanks! :)

Answers

Answer:

a and c

Step-by-step explanation:

It would be a and c !

need help fast! Thank you!

Answers

Answer:

20, 12, and 16

Step-by-step explanation:

So we know that y=4x

This basically means y=4*x

So we can plug the values for x shown on the table below to find y.

when x=5:

y=4*5

y=20

So for the first fill in box, its 20

Next is x=3:

y=4*3

So for the next fill in box it is 12.

Finally we have x=4:

y=4*4

y=16

So the for the finally box it is 16.

Hope this helps!

Answer:

5 - 20

3 - 12

4 - 16

Step-by-step explanation:

Hope this helps

The math department is putting together an order for new calculators. The students are asked what model and color they prefer. Which statement about the students preferences is true?

A. More students prefer silver Model 55 calculators than silver Model 77 calculators.
B. More students prefer Model 66 calculators than Model 55 calculators.
C. More students prefer black calculators than silver calculators.
D. The fewest students prefer silver Model 66 calculators.

Answers

Answer:

Step-by-step explanation:

Answer:a

Step-by-step explanation:

Can someone please help ASAP?

Answers

Answer:

SA = 144 ft²

Step-by-step explanation:

SA = 1/2(9)(6)(4) + (6 x 6) = 144 ft²

what the guy above me said

ANSWER FAST!!!! The school bus travels at an average speed of 30 miles an hour in the morning because of the traffic. Diego's Home is 3 miles away from the school. If he got picked up by the bus at his house at 7:12am, what time did he arrive at the school? ANSWER plz

Answers

If he is going 30 miles and Diego is adopted then he is going to arrive at the school at 7:22

he will arrive at school at 7:22

Can anyone help out with this?

Answers

Answer:

Step-by-step explanation:

Given the smaller circle which is shaded whose radius is denoted by r and the largest circle whose radius is denoted by R

r = 3 inches

R = 5 inches

Step 1 : To calculate the area of shaded region.

Area of circle =

⇒ Area =

= square inches

Step 2 : To calculate the area of larger circle.

Area of circle =

⇒ Area =

= square inches

Step 3 : Calculate the probability that a point chosen from shaded region

Probability = Area of shaded region/Area of larger circle.

= /

= 0.36 = 36%

Step 4 : calculate the probability that a point chosen inside the larger circle is not in shaded region.

Probability = 1 - 0.36

= 0.64 = 64%

Hence the probability is 64%

Step-by-step explanation:

What is

(n+8) + (n−12)

Answers

Answer:

2n - 4.

Step-by-step explanation:

(n+8) + (n−12)

= n + 8 + n - 12

= n + n + 8 - 12

= 2n - 4.

Answer:

2n-4

Step-by-step explanation:

add like terms. n+n=2n 8+-12=-4

2n-4

Question down below. Answer for points

Answers

Answer:

The base is 9 units

Step-by-step explanation: 9 x 15 = 135 square units

Answer:I think you need to divide 135 by something I don’t know

Step-by-step explanation:

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