Katie bought a sweater and 1 skirt that cost $20. The items she bought cost a total of $60. What was the cost of the sweater? ​

Answer:

$32.1

Step-by-step explanation:

First find out what 25% of 40 is:

$40 x .25 = $10

Take the answer and subtract that from the original price:

$40 - $10 = $30

Next, take the sales tax (7% or 0.07) and multiply that by the new price:

$30 x 0.07 = $2.1

Lastly, take the answer and add that to the new price:

$30 + $2.1 = $32.1

Then you would get your answer:

$32.1

Answer:

18.6inches

Step-by-step explanation:

Given the length of a side of a pentagon to be 6 inches.

If this length is dilated by a factor of 3.1, the new length will be;

New length = Old length * dilation factor

New length = 6 * 3.1

New length = 18.6inches

Hence the length of each side of the dilated pentagon is 18.6inches

Answer:

OL = 128.2

Step-by-step explanation:

If the two quadrilaterals are similar, the ratio of their corresponding sides are equal;

Thus;

KJ/KH = NO/OL

19/42 = 58/OL

OL = (42 * 58)/19

OL = 128.2

Answer:

456.29 miles

Step-by-step explanation:

Hope this helps!

THis is the answer for ur question

Answer:

1) volume = 102.92 m²

2a) Perimeter = 28 inches

2b) Actual perimeter = 672 inches or 56 feet

2c) Exactly 24 times greater

Step-by-step explanation:

1)

4x5.5 = 22

full circle = (5.5²)(π) = 95

(30/360)(95) = 7.92

95+7.92 = 102.92 m²

2a)

Perimeter = (2)(6+8) = 28 inches

2b)

Actual perimeter = (2)(144+192) = 672 inches or 56 feet

2c)

(24)(28) = (2)(144+192)

672 = 672

Exactly 24 times greater

Answer:

The total time the water balloon is in the air is 8 seconds. The balloon reaches the maximum height of 25 fee after 3 seconds. The water balloon has a height of 24 feet at 2 seconds and a half.

Step-by-step explanation:

Answer:

I was saying the same thing

Step-by-step explanation:

Answer:

4.05

Step-by-step explanation:

1.25+2+0.8

3.25+0.8

4.05

Answer:

4.05

Step-by-step explanation:

did the math

please delete my answer it was wrong I don't want to get a point for the wrong answer. I want other people that have the right answer to get the points.                  (my answer: 1/54)

Answer:       27

Step-by-step explanation:

It’s soooo correct

Answer:80 liters of petrol

Answer:

P=152

A=79

Step-by-step explanation:

add all the sides

Answer:

my friends last name is bradley

Step-by-step explanation:

Answer:

200 billion to 700 quintillion planets

Step-by-step explanation:

I hope this helps :)

Answer:

900

Step-by-step explanation:

Answer:

Answer: 12×75

= 900

Step-by-step explanation:

Hope this helps

Answer:

x=11°

<Bec = 33°

<Ced = 39°

Step-by-step explanation:

That's a right angle so it would be 90 degrees angle.

18+3x+4x-5=90

Lets simplify it to make it easier to work out by collecting like terms.

First all the variable 3x+4x=7x

Then the numbers 18+-5=13

13(-13)+7x = 90(-13)take away 13 from both sides

(Opposite operators EG, Add becomes subtract)

7x = 77 then divide 7 from both sides

x=11

Then work out

3x11=33 degrees

4x11=44-5=39 degrees

To double check 39+33+18=90 degrees

Answer:

2 5/6 ft

Step-by-step explanation:

Paul perimeter = 4 1/2+6+3 1/3+3 1/3+6 = 23 1/6 ft

Ian perimeter = 2(8+5) = 26 ft

26-23 1/6 = 2 5/6 ft

Answer:

It’s c.  B)))))

Step-by-step explanation:

Answer:

70

Step-by-step explanation:

since you are solving for the middle angle, you solve for the average for both angles on the side

(112+28)/2=70

x=70

Hope that helps :)

Answer:

D = 18 miles

Step-by-step explanation:

The coordinate of a library = (4,3)

The coordinate of the school = (-5,3)

We need to find the distance between the library and the school. We can use the distance formula i.e.

[tex]D=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\\\\=\sqrt{(-5-4)^2+(3-3)^2}\\\\=\sqrt{81}\\\\=9\ miles[/tex]

As the distance between each unit represents 2 miles. It means the distance is 2(9) = 18 miles

So, the correct option is (c).

Answer:

101

Step-by-step explanation:

Answer:101

Step-by-step explanation:

Answer:

slope = 5/2

y-intercept = 3

equation:  y = 5/2x + 3

Step-by-step explanation:

i used the points (-2,-2) and (0,3) to find slope

Answer:

Step-by-step explanation:

A line is expressed as y=mx+b where m=slope and b=y intercept. As long as we have two points we can solve the equation of that line.

y=mx+b

For the top line I found two points (5,200) and (30,325)

m=(y2-y1)/(x2-x1)=(325-200)/(30-5)=125/25=5

y=5x+b, using point (5,200) we can solve for b

200=5(5)+b, b=200-25=175 so the line is

y=5x+175

For the bottom line we have points (5,50) and 10,100)

m=(100-50)/(10-5)=50/5=10

y=10x+b, using point (5,50) we have

50=10(5)+b, b=50-50=0 so

y=10x

4800 patients

Step-by-step explanation:

120 of 1000 means 12%

12% of 40000 is 4800

Answer:

b might be correct

Step-by-step explanation:

I hope this helps

Answer:

120 ohms

Step-by-step explanation:

Given data

Voltage= 60 volts

Current= 0.5 amps

Power of bulb= 60 watt

We know that from Ohms law

V= IR

Make R subject of the formula

R= V/I

R= 60/0.5

R= 120 ohms

Hence the resistance is 120ohms

Well-designed child care centers typically have approximately 100 square feet per child of space in the overall center. So for example, a center proposing to serve 80 children would be likely to need a building that has about 8,000 square feet of total space available.

Answer:

The GCF is 9

Step-by-step explanation:

9=1,3,9

18=1,2,3,6,9,18

Answer: 2b+12

Step-by-step explanation:

Because the number is in front of the bracket you have to times everything in the bracket by the number on the outside.

So,

2 times b is 2b

And

2 times 6 is 12

So it would be 2b+12