How can you add, subtract, and multiply decimals.

Answers

Answer 1
Type the numbers you want to add , subtract and multiply into your calculator or do metal math .

Related Questions

A windshield wiper is 18 inches long and its blade is 12 inches long. It sweeps through an angle of 130 degrees. What is the total area wiped by the windshield wiper?

Answers

Answer:

[tex]A=65 inches^2[/tex]

Step-by-step explanation:

From the question we are told that:

Length of wiper [tex]x=18[/tex]

Length of blade [tex]y=12[/tex]

Angle[tex]\theta=130\textdegree[/tex]

Generally the equation for Cover Area windshield wiper A_w  is mathematically given by

 [tex]A_w=x^2*\frac{\theta}{360}[/tex]

 [tex]A_w=18^2*\frac{130}{360}[/tex]

 [tex]A_w=117 \textdegree[/tex]

Generally the equation for Cover Area windshield blade A_b  is mathematically given by

 [tex]A_b=y^2*\frac{\theta}{360}[/tex]

 [tex]A_b=12^2*\frac{130}{360}[/tex]

 [tex]A_b=52 \textdegree[/tex]

Therefore total Area wiped by windshield wiper A

 [tex]A=A_w-A_b[/tex]

 [tex]A=65 inches^2[/tex]

You ask of your classmates if they have any siblings. Complete the​ two-way frequency table to show the results of the survey.
Construct the​ two-way frequency table.

Answers

Answer:

can you show the table?

Step-by-step explanation:

to help with figuring the answer cause there no context

Non-examples of least Common Multiple

Answers

Answer:

Multiples of 4 are: 4, 8, 12, 16, 20, 24, 28, 32, 36, ...

Multiples of 6 are: 6, 12, 18, 24, 30, 36, ...

Step-by-step explanation:

If two numbers have no common factors greater than 1, then their LCM will be their product. For example, take numbers 7 and 9. They have none common factor greater than 1. So, LCM will be 7 * 9 = 63.

What is -0.032 + 6.42 ?

Answers

Answer:

6.388

hope this helps

have a good day :)

Step-by-step explanation:

Answer:

6.38800

Step-by-step explanation:

Can someone plz help me?

Answers

Answer:

c

Step-by-step explanation:

c

Please help me solve all of this thank you :) have a nice day <3

Answers

Answer:

I don't know how you wanted to round it

1)

SA = 8(7) + 12(7) + 10(7) + [tex]\frac{1}{2}[/tex] [tex]\sqrt{-8^4+2(8x12)^2+2(8x10)2-12^4+2(12x10)^2-10^4}[/tex]

SA = 289.3725

V = [tex]\frac{1}{4}[/tex] (7) [tex]\sqrt{-8^4+2(8x12)^2+2(8x10)2-12^4+2(12x10)^2-10^4}[/tex]

V = 277.80389

2)

SA = 8.1(13) + 8(13) + 8.1(13) +  [tex]\frac{1}{2}[/tex] [tex]\sqrt{-8.1^4+2(8.1x8)^2+2(8.1x8.1)^2-8^4+2(8x8.1)^2-8.1^4}[/tex]

SA = 370.94749

V = [tex]\frac{1}{4}[/tex] (13) [tex]\sqrt{-8.1^4+2(8.1x8)^2+2(8.1x8.1)^2-8^4+2(8x8.1)^2-8.1^4}[/tex]

V = 366.2587

please help:) see pic attached

Answers

Answer:

a. 7

b. 6

c. 5.2

d. 7

Step-by-step explanation:

a: The mode is the number that occurs the most. 7 occurs the most in the set.

B. I rearrange d the numbers in numerical order and then found the middle (where both sides surrounding the number are the same amount of numbers. This was 5 and 7 so to find the mean I added 5+7 and divided it by two to get the in between, 6!

c. I added all of the values and then divided them by the amount of total values in the data set.

so I did 1 + 2 +3+4+5+7+7+7+8+8 = 52

52/10 = 5.2

d. range is the greatest value by the least value. So I did 8 - 1 to get 7!

Find the measure of the arc indicated.
C
33°
B
?
D
124

Answers

Answer:

C

33

Step-by-step explanation:

C 33 that my answer

list all the factors of 10

Answers

Answer: factors of 10 are 1, 2, 5, and 10.

Step-by-step explanation: You can also look at this the other way around: if you can multiply two whole numbers to create a third number, those two numbers are factors of the third. 2 x 5 = 10, so 2 and 5 are factors of 10.

Answer:

1,2,5,10

Step-by-step explanation:

1 x 10 = 10

2 x 5 = 10

10 x 1 = 10

Molly is making strawberry infused water. For each ounce of strawberry juice, she uses three times as many ounces of water. How many ounces of strawberry juice and how many ounces of water does she need to make 84 ounces of strawberry infused water

Answers

Answer:

21 ounces of juice.

63 ounces of water

Step-by-step explanation:

let :

x = ounces of strawberry juice to make the strawberry infused water.

3x = ounces of water needed to make the strawberry infused water.

3x + x = 84

4x = 84

divide both sides of the equation by 4

x = 21 ounces

3x = 3 x 21 = 63 ounces

Consider the figure below.

Line segment AD, Line segment BE, and line segment CF are medians concurrent at G.
Which of the following statements is true?

A FG=1/2 GC
B ED=2/3 AB
C BG=1/2 BE
D GD=2/3 AD

Answers

Answer:

A: FG = ½GC

Step-by-step explanation:

Since AD, BC and CD are medians concurrent at G, it means G is the centroid.

Now, when median passes through the centroid, the centroid divides the median in the ratio of 2:1.

Also,that the median touches the side of the triangle at their midpoints.

Thus,by inspection, we can say that;

GD = ⅓AD

GC/FG = 2/1

Thus, GC = 2FG and FG = ½GC

BG = ⅔BE

Tbus,looking at the options given and what we have gotten in proof, we can say only FG = ½GC is correct.

20. Find the area of the shape below.

EI = 18 centimeters
KT 12 centimeters
Round your answer to the nearest centimeter.

Answers

Answer:

Step-by-step explanation:

Five hats and three scarves cost $99. While three hats and five scarves cost
$85. Find the cost of one hat.

Answers

Answer:

x=15, y=8

15 hats and 8 scarves

Step-by-step explanation:

hats=x

scarves=y

5x+3y=99

3x+5y=85

A student bought 5 coats at $86 each and paid for them with only $20 bills. How many bills did it take ?
It took _ $20 bills.

Answers

It took 22 $20 bills . $86 x5= $430
Then $430 divide by 20 = 21.5
So you can’t have half a bill do the answer has to be rounded up to 22 twenty dollar bills

Find the value of Sin^-1(-√3/2)

Answers

Answer:

The exact value of sin-1(√32) sin -1 ( 3 2 ) is π3 .

Step-by-step explanation:

Max is taking a cab in New York City. The fare is calculated as a base charge of $3.00 plus an additional $2.00 per mile traveled. It is also customary to leave a $2 tip.If Max wants to spend exactly $20, how many miles can he travel?

Answers

Answer: 7.5miles

Step-by-step explanation:

Since the fare is calculated as a base charge of $3.00 plus an additional $2.00 per mile traveled and also customary to leave a $2 tip and Max wants to spend exactly $20. This information can be formed into an equation as:

Let the miles that he can travel be m.

3 + (2 × m) + 2 = 20

3 + 2m + 2 = 20

5 + 2m = 20

2m = 20 - 5

2m = 15

m = 15/2

m = 7.5miles

Therefore, Max can travel 7.5miles

Find the volume of the rectangular prism.
11 cm
11 cm
11 cm
Volume
[?] cm
cm

Answers

Answer: 1331

Step-by-step explanation: v=lwh

The volume would be 1,331 cm cubed. I hope this helps, have a good day!

Find the missing value so that the line passing through the 2 points has the given slope.
(-7,-3) and (-1. y); slope: 1

Answers

Answer:

3

Step-by-step explanation:

We know that the slope of a line passing through the points ( x ₁ , y₁) and ( x₂ , y₂ ) is ,

→ Slope ( m ) = ( y₂ - y₁) / ( x₂ - x ₁ )

The points here are (-7,-3) and (-1,y) . Using formula of the slope , we have ,

→ m = -3 - y / -7 - (-1)

→ 1 = -(3+y)/ -7+1

→ 1 = -(3+y) / -6

→ 6 = 3 + y

→ y = 6 - 3

y = 3

Hence the value of y is 3 .

No joke answers. No links. Will award BRAINLIEST if correct!!Question 12 (1 point)
A scientist is interested in whether stretching before running 5 kilometers will improve a runner's time. The
scientist decides that an experimental study is the best method to use to answer the question. One group of
runners will run a 5-kilometer race without stretching, and a second group of runners will follow a specific
stretching routine before running the race. The finishing times will be recorded, along with the group type for
each runner
The group that raced without stretching has a mean finish time of 23.5 minutes and a standard deviation of 2.6
minutes. Write a sentence or two that summarizes any conclusions that can be made about the statistical
question, "Does stretching before running a race improve a runner's time?"

Answers

Answer:

Yes

Step-by-step explanation:

Someone help me with this pls

Answers

(5^-2)^2 and 5^2•5^-6

A quadrilateral has the following vertices on a coordinate plane:

Point J: (3,−6)
Point K: (−1,−6)
Point L: (−1,2)
Point M: (3,2)

Enter the length of side JK.
units

Answers

Answer:

We have to draw it!

Step-by-step explanation:

Use graph paper:

4 units i graphed it out

There are 20 questions in a quiz. Each correct answer scores 7 points, each wrong answer scores -4 points and each question left blank scores 0 points. Eric took the quiz and scored 100 points. How many questions did he left blank?.

Answers

Answer:    1  question left blank

He answered 16 questions correctly, and got 3 wrong answers.

==========================================================

Explanation:

Let

x = number of questions that are correct y = number of wrong answers z = number of questions left blank

x,y,z are nonnegative whole numbers.

-------------------

Since there are 20 questions total, this means the first equation to set up is:

x+y+z = 20

Solving for y leads to

x+y+z = 20

y+z = 20-x

y = 20-x-z

We'll use this later.

-------------------

Another equation to set up is 7x-4y = 100 because Eric earns 7 points per correct answer and loses 4 points for each incorrect answer, and all that leads to 100 points total which was his quiz score. We'll ignore the questions he left blank since they add 0 points.

Let's plug the equation in which we isolated y

7x-4y = 100  

7x-4(20-x-z) = 100

7x-80+4x+4z = 100

7x+4x+4z = 100+80

11x+4z = 180

-------------------

Now we can guess and check to see which pair of x and z values will make that last equation above true. I suggest starting with the smallest possible value of x and using that x value to solve for z.

If x = 0, then,

11x+4z = 180

11(0)+4z = 180

4z = 180

z = 180/4

z = 45

So if Eric got 0 correct answers, then he left 45 questions blank. But that isn't possible because there are only 20 questions total. So we'll ignore the case that x = 0.

If we increase x by 4, and decrease z by 11, then we get another ordered pair solution to this equation

So another solution is (x,z) = (4,34)

Note that

11x+4y = 180

11(4) + 4(34) = 180

But like before, z = 34 isn't possible since 20 is the max.

Increase x by 4 again, and drop z by 11 to get (x,z) = (8,23). Again we run into the same issue as before.

Increase x by 4 again, and decrease z by 11 to get (x,z) = (12, 12). Now we have both x and z smaller than 20, but note how x+z = 12+12 = 24 which exceeds the total number of questions. So we rule this case out as well.

Do another round of "increase x by 4, decrease z by 11" to get to (x,z) = (16, 1). This is the only case left because anything beyond this, z will be negative.

Luckily, this final case does work. If Eric answers x = 16 questions correctly, then he left z = 1 of them blank. That must mean y = 20-x-z = 20-16-1 = 3 questions were incorrect.

We can see that:

7x-4y = 7(16)-4(3) = 112-12= 100

meaning that (x,y) = (16,3) is a solution to 7x-4y = 100.

-------------------

To summarize, we found that the only possible solution is (x,y,z) = (16, 3, 1)

Meaning x = 16 questions were correct, y = 3 were wrong, and z = 1 question was left blank.

Please assist me in the geometry please !!!!

Answers

Answer:

Solution given:

length of cube[a]=6ft

volume of cube =a³=6³=216ft³

again

For cylinder

d=4ft

r=2ft

h=6ft

volume of cylinder=πr²h=π×2²×6=75.4ft³

Now

remaining volume=216-75.4=140.6ft³

is a required answer.

B) Redville is directly west of Yellowton, and Purplesburg is 151 miles directly north of Redville. If Yellowton is 258 miles from Purplesburg, how far is Redville from Yellowton in miles? Round to the
nearest tenths, if necessray.
B) answer: miles

Answers

Answer:

is that for social studeies

Step-by-step explanation:

$775 at 6% simple interest for 3 years.

Answers

Question :-

$775 at 6% simple interest for 3 years.

____________________

Solution :-

Given Information :-

Principal ( P ) = $775Rate of Interest ( R ) = 6% p.a.Time Period ( T ) = 3 years

To Find :-

Simple Interest

Formula Used :-

[tex] \boxed{ \sf\dfrac{principal \times rate \times time}{100} }[/tex]

Calculation :-

Substituting the given values in the formula, We get,

[tex] \sf: \implies \dfrac{775 \times 6 \times 3}{100} [/tex]

Calculating further, We get,

[tex] \sf: \implies \dfrac{13950}{100} [/tex]

Dividing, We get,

[tex] \sf: \implies \$ 139.50[/tex]

∴ The Simple Interest is $139.50

____________________

Final Answer :-

The Simple Interest is $139.50

____________________

What percent of the people surveyed more than 10 hours of exercising each week?

Answers

Answer:

The percentage of people is 60%

Step-by-step explanation:

The reasoning this is the answer is because you to find the percentage you take the amount which does the thing or the part of the whole which is included in the slection ad you divide it by the total and multiply that by 100 so (2100/3500)*100 and that gives you 60%

Which equation matches y = 2x + 3
a) The cost of buying two shirts after a $3 discount
b) The total amount of money you make after spending $3 on
supplies and selling for $2 per item
c) The total height of a 3 inch tree after it grows 2 inches per
month.
d) The amount of money in your bank account if you started
with $2 and make $3 per day.

Answers

Answer: C
The total height of a 3 inch tree after it grows 2 inches per month

The equation y=2x+3 matches the total height of a 3-inch tree after it grows 2 inches per month.

We have given, y=2x+3

We have to determine whether the equation matches y=2x+3.

What is the slope-intercept form?

The slope-intercept form of the line is y=mx+c.

Where m is the slope

C=y-intercept

Therefore option c is correct.

because the height is three inches and the tree after it grows 2 inches per month.

The slope of a line is a measure of its steepness.

Here the slope is 2 and the y-intercept is 3.

Therefore option c is correct.

To learn more about the slope intercept-form visit:

https://brainly.com/question/25826868

#SPJ2


24 in
10 in
What is the length of the hypotenuse?
C=
inches

Answers

Answer: 26

Step-by-step explanation:

help pls at least some °ω°

Answers

2.5 x 5 = 12.5
2.4 x 6 = 14.4
5.3 x 7 = 37.1
7.2 x 8 = 57.6
5.1 x 9 = 45.9
i did the entire first row

Answer:

12.5

14.4

37.1

57.6

45.9

71.1

77.4

70.4

60

59.4

47.6

34.2

48.3

67.5

75.6

If
y
=
9
, evaluate the following expression:
4
y
+
10

Answers

Answer: 46

Step-by-step explanation:

4(9)+10

36+10

46

Answer:

46

Step-by-step explanation:

4y + 10

4(9) + 10

36 + 10

46

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