Mathematics High School

Please help...

Increase £12.80 by 15%

Answers

Answer 1

Answer:

£14.72

Step-by-step explanation:

Multiple 12.80 by 1.15

Related Questions

PLEASE HELP ME WITH THIS FOR BRAINLIEST AND A COOKIE

Answers

Answer:

Step-by-step explanation:

Answer: the answer is 12

Step-by-step explanation: im just here for the cookie

Which of the following is a decomposition reaction?
reactant plus reactant yields product
reaciant minus reactant yields product
reactant yields product plus product reactant yields product times product

Answers

Answer:

Reactant plus reactant yields product.

Step-by-step explanation:

A decomposition reaction starts from a single substance and produces more than one substance. One substance as a reactant and more than one substance as the products is the key characteristic of a decomposition reaction.

Hope this helps.

Last month Albert earned half of what Betty earned, while Betty earned $5000 more than what Calvin earned. If Donna earned twice what Calvin earned and Albert and Betty together earned $900 more than what Calvin and Donna earned together, how much did each person earn?

Answers

Answer:

Calving earning = 4400

Betty earning = 9400

Albert earning = 4700

Donna = 8800

Step-by-step explanation:

Given that :

Calving earning = c

Betty earning = c + 5000

Albert earning = (c + 5000) /2

Donna = 2c

c + 5000 + (c + 5000) /2 = 900 + c + 2c

c + 5000 + 0.5c + 2500 = 900 + 3c

1.5c + 7500 = 900 + 3c

7500 - 900 = 3c - 1.5c

6600 = 1.5c

c = 6600 / 1.5

c = 4400

Calving earning = c = 4400

Betty earning = 4400 + 5000 = 9400

Albert earning = (4400 + 5000) /2 = 4700

Donna = 2(4400) = 8800

22+n=−12
pls help me im kinda confused

Answers

Answer:

-34

Step-by-step explanation:

22+n=-12

n=-12-22

n=-34

When you bring a positive constant to the other side of the equal sign it goes negative and vise versa. Then you combine like terms.

Please follow me!!!! Hope this helps!!! Have a wonderful day :)

Kwame fills a bird feeder with seeds. As
birds visit the feeder, the height of the
seeds changes from 13.6 cm to 11.1 cm
over a period of 6 1/4 hours. What is the
average change in the height of the seeds
each hour?

Answers

Answer:

Step-by-step explanation:

Givens

Time = 6.25 hours

distance = 13.6 cm - 11.1 cm = 2.5 cm

Formula

rate = distance / time

Solution

rate = 2.5 / 6.25

rate = 0.4 cm/hour

(SAT PREP) Find the value of x.

(I have several, please help!!)

Answers

question 1 :- sum of all angles of a triangle is 180°

so, x + 39° + 25° + 15° = 180°

⇒x + 79° = 180°

⇒x = 101°

question 2 : draw the along with AD and make and triangle as shown in figure.

as ABCD is a parallelogram. so, angle FDE = 180° - x

and angle FED = 180° - x [ as FEA + FED = 180° ]

now from ∆DEF,

50° + 180° - x + 180° - x = 180°

⇒230° - 2x = 0

⇒x = 105°

also read : If (A + B) =(A-B) then the angle between the Ả and B.

brainly.in/question/12391097

(SAT Prep) In the figure, a+b+d+e =

A. 330°

B. 325°

C. 290°

D. 300°

Find the value of x
PIC IS BELOW

Answers

Answer:

I'm pretty sure It's D correct me if I'm wrong though. :)

Step-by-step explanation:

Solve 2(x + 1) = 2x + 5. (1 point)

Answers

1) Expand.

2x+2=2x+5

2) Cancel 2x on both sides.

2=52=5

3) Since 2=52=5 is false, there is no solution.

No Solution

Therefore, this equation has no solutions.

TIME REMAINING
59:50
The table shows the mean number of basketball goals made by four random samples of players from the school team
during this year's season.
Sample #
Sample Mean
Number of Goals
7
1
4
2
3
5
4
8
Is a valid prediction for the mean of the population possible using these samples?
O No, there are not enough samples.
Yes, the sample means are all less than 10.
Yes, the variation of the sample means is small.
O No, the variation of the sample means is too great.
Mark this and retum
Save and Exit
Next
Submit

Answers

Answer:

I'd say yes, because you have a good variety of samples. (B.)

Step-by-step explanation:

Sally has four continents 2 dime 6 nickels and 10 pennies can you please help me

Answers

Answer:

$1.60

Step-by-step explanation:

jdhhrhehehhehehthhrhhrhrhhhhjjjjhjjjjjjjjjjjjjjjjjjjjjjjjjjjh

I would love it if you could help with this! Thank you so much! Have a good day!

Answers

Answer:

6(5s+1) = 30s+6

Step-by-step explanation:

Answer:

30s+ 6

Step-by-step explanation:

In this problem you are using distributive property.

This means the six is being multiplied by both the 5s and the 1.

It og equation could also be written as 6(5s)+ 6(1)

What is the value of the following expression if q = 10?
24 divided by (q-2)
HELPPP

Answers

Answer:

(B) 3

Step-by-step explanation:

24/(10-2)

24/8 is 3

Round to the nearest tenth.

x=

y=

Answers

Sin 55 = x/21 —> x = 21* sin55 = 17.2
Cos 55 = y/21 —> y= 21 * cos 55=12.0
Can you mark it brainliest?

Which is the approximate measure of this angle?

Answers

Answer:

approximately 30°

Step-by-step explanation:

...........

Could someone help me with this? It would be greatly appreciated! (Photo Attached)

Answers

Answer:

Step-by-step explanation:

move 4x to the other side making it -4x

Find all solutions to (x+5)(2x-3). Explain or show your reasoning.

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first you do x multiply 2x to get 2x^2
then you do x multiply-3 to get -3x
then 5 multiply 2x so you get 10x
then you do 5 multiply-3 to get -15

then you join it together to get
2x^2+10x-3x-15
then simply to get 2x^2+7x-15
and that should be your answer

PLZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ HELP I'LL GIVE BRAINLEST

Answers

Answer:

Well, it is a right angle, which means 90º

Step-by-step explanation:

I'm not sure if this is the answer or if it is correct.. Sorry!

A circle has a diameter of 28 mm. What is its circumference?

Use 3.14 for 1, and do not round your answer. Be sure to include the correct unit in your answer.

Answers

Answer: C=87.92 mm

Explanation: We can find the circumference using C=πd.

When using 3.14 for π, we will simply have C=3.14*28, which equals 87.92mm.

It takes a turtle 3 ¼ hours to walk 1 ½ miles. How many hours does it take to walk one mile?

Answers

Answer: 2.17 hours

Step-by-step explanation:

Answer:

2.17 hours

Step-by-step explanation:

Zoe buys a new car that is valued at $24,000. The car will depreciate at
a rate of 1% per month. What is the value of the car after 6 months?

Answers

Answer:

120

Step-by-step explanation:

Principal = 24,000

Rate = 1%

Time = 6 months = 0.5

Simple Interest = 24000×1×0.5 ÷ 100

= 120

What is the volume of the sphere with the radius of 9 and round to the hundredths

Answers

Answer:

3046.389 units

Step-by-step explanation:

Given data

r=9units

Volume of sphere

V= 4/3πr^3

substitute

V= 4/3*3.142*9^3

V=1.33*3.142*729

V=3046.388 units

Hence the volume is 3046.389 units

7. The figure shows a right rectangular prism whose base is a square...

Answers

Answer:

Step-by-step explanation:

x + y = 4
2x - 5y = 15
Graphing

Answers

Answer:

Step-by-step explanation:

5x + 5y = 20

2x - 5y = 15

7x = 35

x = 5

5 + y = 4

y = -1

(5, -1)

Shawna bought 2 notebooks that cost $2.19 each. She paid for them with a
$5 bill. Which number sentence can be used to find how much money
Shawna received in change?
A. (2 x 5.00) + 2.19 =
B.
5.00 + (2 x 2.19) =
C.
(2 X 5.00)
2.19
OD 5.00
(2 x 2.19)

Answers

The answer is: 5 - (2 X 2.19)

-20x(-5)-50 evaluate

Answers

Answer:

it's 50 because I know trust me

Answer:

Step-by-step explanation:

-20x-5-50= 50

In order to get to work, Lindsay takes access roads that require a toll for drivers to use. She pays $4 each day to use the access roads. She also pays $5 each day to park her car at the company lot. Assuming the toll payments are used to plot the x-coordinate and the parking lot payments are used to plot the y-coordinate, which ordered pair represents how much money Lindsay spends during a 5-day work week?

A.
(
4
,
5
)
B.
(
12
,
15
)
C.
(
15
,
20
)
D.
(
20
,
25
)

Answers

The ordered pair that represents how much she spends on a 5-day week is (20,25)

The rates are given as:

[tex]Access\ Roads = \$4[/tex]

[tex]Parking\ Lot= \$5[/tex]

From the question, x represents the access to roads, and y represents the number of days she parked her car.

So, her daily expense is:

[tex]Daily = Access\ Roads \times x + Parking\ Lot \times y[/tex]

This gives

[tex]Daily = 4\times x + 5\times y[/tex]

[tex]Daily = 4x + 5y[/tex]

For a 5-day work week, her daily expense is:

[tex]Daily = 4 \times 5 + 5 \times 5[/tex]

[tex]Daily = 20 + 25[/tex]

Express as ordered pair

[tex]Daily = (20 , 25)[/tex]

Hence, the ordered pair that represents how much she spends is (20,25)

Answers

Answer:

Step-by-step explanation:

I don't actually know if this is what you want but

8 divided by 0.001 is 8000

and

8 divided by 110 is 0.07272727272727272

I hope this helps

A piece of cake has 347 calories in it.How many calories are there in 8 piece of cake.

Answers

Answer:

2776 calories

Step-by-step explanation:

347

x 8

____

2776 calories

Answer:

2776 calories

Step-by-step explanation:

To figure out the answer, I did 347×8 to get me an answer to 2776 calories.

If f(x) = 3x - 2 then what is f(10)/

Answers

Answer:

Step-by-step explanation:

f(10) means replace all x's with 10. f(10) = 3(10) - 2 -> 30-2 = 28

2x-1-(-x+3) = 6-2x SHOW STEPS....DUE TODAY

Answers

Answer:

x=2

Step-by-step explanation:

Simplify both sides of the equation.

2x−1−(−x + 3)=6−2x

(Distribute the Negative Sign)

2x−1 + −1(−x + 3)=6−2x

2x + −1 + −1(−x) + (−1)(3)=6−2x

2x + −1 + x + −3=6−2x

2x + −1 + x + −3=6 + −2x

(Combine Like Terms)

(2x + x) + (−1 + −3)=−2x+6

3x + −4=−2x + 6

3x−4=−2x + 6

Add 2x to both sides.

3x−4 + 2x=−2x + 6 + 2x

5x−4=6

Add 4 to both sides.

5x−4 + 4=6 + 4

5x=10

Divide both sides by 5.

5x/5=10/5

x=2

Other Questions

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Please help... Increase £12.80 by 15%

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Please help...

Increase £12.80 by 15%