Order of Operations - Use PEMDAS. Evaluate the expression. Show all work please!
18 - 2 (1 + 10 / 5)

Answers

Answer 1
Answer: 12

Explanation:
18-2(1+10/5)
18-2(1+2)
18-2(3)
18-6
12
Answer 2
Bodmas

18-2(1+10/5)
First if all divisions
18-2(1+2)
Open bracket
18-2-4
18-6
12
12 final answer

Related Questions

COME ON!! What’s the answer 53 points!

Answers

Answer:

X : -6, 3, 15, -12

Y : 11, 5, -3, 15

Step-by-step explanation:

Hey there!

To find the y values we need to plug the x values into th given equation,

y = -2/3x + 7

-6 ⇒ 11

15 ⇒ -3

Now we have a x value missing to that that we work backwards,

we plug in 15 for y in the given equation,

15 ⇒-12

Hope this helps :)

Step-by-step explanation:

[tex]y = - \frac{2}{3} x + 7[/tex]

Substituting the values of x into the expression we have

For x = - 6

[tex]y = - \frac{2 }{3} ( - 6) + 7[/tex]

y = 11

For y = 5

Make x the subject

[tex]5 = - \frac{2}{3} x + 7[/tex]

Multiply through by 3

15 = - 2x + 21

-2x = 15 - 21

- 2x = - 6

Divide both sides by - 2

x = 3

For x = 15

[tex]y = - \frac{2}{3} (15) + 7[/tex]

y = - 10 + 7

y = - 3

For y = 15

[tex]15 = - \frac{2}{3} x + 7[/tex]

Multiply through by 3

45 = - 2x + 21

- 2x = 45 - 21

- 2x = 24

Divide both sides by - 2

x = - 12

Hope this helps you

Find the value of y and x.

Answers

Answer:

x = 130°y = 65°

Step-by-step explanation:

All inscribed angles intercepting the same arc have the same measure.

If you slide the vertex of angle y clockwise around the circle until it coincides with the vertex of the angle marked 65°, you see that those two inscribed angles (y and 65°) intercept the same arc, so have the same measure:

  y = 65°.

The measure of an inscribed angle is half the measure of the intercepted arc, so the arc marked x is double the angle 65°.

  x = 130°.

The answer for this is y= 65 degrees and x= 130 degrees

plls 20 poinsts will mark brainlest

Answers

Answer:

My answer is in the attached image.

Dat is wat I got I really hope dat helped

Identify the constant of proportionality from the table.

X: 4, 5, 7, 9
Y: 32, 40, 56, 72

Answers

Divide y by x:

32/4 = 8

40/5 = 8

56/7 = 8

72/9 = 8

The constant of proportionality is 8

Answer:

Divide y by x:

32/4 = 8

40/5 = 8

56/7 = 8

72/9 = 8

The constant of proportionality is 8

Step-by-step explanation:

The following set of numbers represents the number of hours a group of students spent reading over the course of two weeks.

3, 19, 11, 29, 4, 6, 10, 16, 2, 21, 15, 22, 13, 9, 1, 17, 2, 26, 18, 7

Graph the set on a histogram, using six intervals in the display. Make sure to label your graph.

Answers

Answer:

Step-by-step explanation:

Here is the histogram, please check the image

Answer:

34224

Step-by-step explanation:

42343

How to do 28a ? Thanks

Answers

Answer:

Step-by-step explanation:

(m+1)²+(m-1)²=m²+2m+1+m²-2m+1=2m²+2=2(m²+1)

Answer:

True it does.

Step-by-step explanation:

(M+1)^2 + (M-1)^2 = 2(m^2 + 1)

M^2 + 2m + 1 + m^2 - 2m + 1 = 2(m^2 +1)

2m^2 + 1 = 2(m^2 + 1)

There's your work.

The ^ means number after is exponent.

Hope this helps, and have a good day :)!

If f(x) = 3x+1, then f(a+h) - f(a) =
1. 03 h
2. h
3. 3 h + 2

Answers

Ok I’m really sorry but I’m not sure if your options are right or my answer is…
But I tried my best ! Hope you understand !!
hey bestieeee the answer is 03 h

Mr. Jacobs is going to make a histogram of the test scores from the last math test he gave. He plans to first organize the data into a stem-and-leaf plot and then make the histogram from the stem-and-leaf plot. The test scores are listed below.

79, 82, 65, 61, 94, 97, 84, 77, 89, 91, 90, 83, 99, 71, 68, 77, 87, 85

How many bars will his histogram have?

3
4
5
6

Answers

I think the answer to this question is 4
I would say the answer is 4

A certain drug is made from only two ingredients: compound A and compound B. There are 3 milliliters of compound A used for every 4 milliliters of compound B. If a chemist wants to make 665 milliliters of the drug, how many milliliters of compound B are needed?

Answers

375 milliliters of compound B

375 millimeters of compond B

Find the term that must be added to the equation x2+4x=1 to make it into a perfect square

Answers

Answer:

add 4 to each side

Step-by-step explanation:

x^2+4x=1

Take the coefficient of the x term

4

Divide by 2

4/2 =2

Square it

2^2 =4

Add this to each side

x^2+4x +4=1+4

(x+2) ^2 = 5

xbdhehhddhddh dheheh

Round the number 53.18474629
a) To the nearest tenth
b) To the nearest thousandth
c) To the nearest whole number

Answers

Answer:

Step-by-step explanation:

To the nearest tenth:  53.2

To the nearest thousandth:  53.185

To the nearest whole number:  53

The answer should be 53.2 53.185 and 53

Help and show work plz

Answers

Answer:

RK: 4 and BC: 6

Step-by-step explanation:

SImilar triangles

find unknown / know sides

Which means (2x+2)/6 = (4x+2)/9

  (X+1)/3 = (4x+2)/9

Multiply 9 to both sides

9/3 (x+1) = (4x+2)

3x+3 = 4x+2

1 = x

Answer: RK = 4, BC = 6

Step-by-step explanation:

In a similar triangle, the ratios of corresponding sides are the same.  Thus, because of sides MK and AC, the triangles have a ratio of 6/9, or 2/3.  Thus, you can determine that 2/3(4x+2)=2x+2.

Distribute

8/3x + 4/3 = 2x + 2

Subtract 2x

2/3x + 4/3 = 2

Subtract 4/3

2/3x=2/3

Divide by 2/3

x = 1

Then, simply plug-in 1 for x to get that RK is 4 and BC is 6

Hope it helps <3

What does y equal -3=15+4y

Answers

Answer:

-3 = 15+4y

4y = 12

y = 3.......

y=-5 the answer is that

A triangle is going to be reflected over the x-axis and translated 4 units left and 2 units up. Which of the following is a TRUE statement?

A
The image with be larger than the pre-image

B
The image with be smaller than the pre-image

C
The image and pre-image will be congruent

D
The image and the pre-image will not be congruent.

Answers

C. The image and the pre image will be congruent
C
The image and pre-image will be congruent

A tailor cuts off a 2-meter long section from a 20-meter long piece of cloth every day. After how many days will he cut off the last section?

Answers

Answer: 10 days

Step-by-step explanation:

20/2 = 10

Answer18

Step-by-step explanation:

What is the Lowest Common Multiple (LCM) of 6 and 95

Answers

Answer:

570

Step-by-step explanation:

Least Common Multiple

The least common multiple (LCM) of two numbers is the smallest number that is even divisible by both numbers.

Hope this helps <3

Answer:

570

Step-by-step explanation:

4x = 2x + 2x + 5(x-x) does this have one solution, no solution or infinite solutions

Answers

Answer:

infinite solutions

Step-by-step explanation:

4x = 2x + 2x + 5(x-x)

Simplify

4x = 2x + 2x + 5*0

4x = 2x + 2x

4x = 4x

Divide by x

4 =4

This is always true so this has infinite solutions

Answer: Infinite solutions

PLEASE HELP PLEASE WILL MARK BRAINLY

Answers

Answer:

1,4,7,9,10

7,28,49,63,70

table thingy

Step-by-step explanation:

The amount multiplied is 7- we can divide or multiply accordingly because it is 7 dollars per feet of fencing.

1,4,7,10 under is 7,28,49,70

What are the restrictions of the domain of f(g(x))?

a) x is not equal to -5
b) x is not equal to -3
c) x is not equal to 2
d) There are no restrictions.

Answers

I think that it’s D and there are no restrictions
The answer would be D) hope I helped and good luck

Annabelle works in a department store selling clothing. She makes a guaranteed
salary of $500 per week, but is paid a commision on top of her base salary equal to
30% of her total sales for the week. How much would Annabelle make in a week in
which she made $2400 in sales? How much would Annabelle make in a week if she
made x dollars in sales?
Earnings when selling $2400:
Earnings when selling $x:

Answers

Answer:

No 1 would be 500 + 2400*30/100 = 500 + 720 = 1220

No 2 would be 500 + x*30/100

Step-by-step explanation:

Answer:

$1200 and 500+ .3x

Step-by-step explanation:

Use this equation: 500+ .3x and insert in 1200.

Made equation by taking garented amount, $500, and have that be added.  Sense you get 30 percent of of x (the amount of sales), have x be multiplied by .3 to get 30 percent.

Help, two of these questions plz

Answers

Answer:

First Answer: y= 64 and x=64

Second Answer: 1&4, 2&3, 6&7, 5&8

Step-by-step explanation:

First Answer: 63 and ∠y is the same measure since there are

Second answer: They are vertical angles, each of the pairs of opposite angles made by two intersecting lines.

Hope this helps:)

1) X = Y = 63 degrees
2) Angles 2= 3 = 6=7
Angles 1= 4=5 = 8

Zach keeps his pet chameleon Pinky in a terrarium with the dimensions shown below. There's sand in the bottom of the terrarium that reaches a height of 888 centimeters. Zach gets a new terrarium for Pinky that is larger. The base of the new terrarium is 252525 by 646464 centimeters. Zach moved the existing sand to the new terrarium. How deep will the sand be in the new terrarium?

Answers

Answer:

The Sand Will Be 2 inches Dip

Step-by-step explanation:

240 h = 480

=> h  = 2

sorry if this didn't help :p

The answer is the sand with be 2 inches deep

Part 1: Serena's drawing
Follow these steps to find the angles of the trapezoids in Serena's drawing. If the angles of her
trapezoid match the angles of the trapezoid stone, then her drawing is correct.

Answers

Answer:

BCDE= 100+ 80+100+80 = 360 degree

BAC = 20 degree

DBC = 100 degree

BDE = 80 degree

Shows all is correct

We associate isosceles trapezoid in this question, this helps us prove with angle A in the triangle vertices how we can find one of the adjacent angles from the trapezoid by subtraction when all angles within one single trapezoid = 360 degrees. We can use 20 degree angle A to subtract and find each alternative angle easier.

Step-by-step explanation:

The semi circle shows 9 stones

Where angles are interior to the trapezoid

Where all 4 sided shapes add up to 360 degree

We draw a line of symmetry on BCED angle

To make midway points BC  and DE = 90 degree

The two new formed shapes are still 4 sided and add up to 360 degree.

BC + DE = 180 degree

BDE = Triangle 180 -20/2 = 160/2 = 80

BCDE = Trapezoid = 360

Trapezoid angle DBC = 360-80-80/2 = 360-160/2 = 200/2 = 100 degree  

Finding interior angle A (BAC)

BAC = 180/9 = 20 degree

BAC * (2) = 360 degree circle

BAC = 360/18 = 20 degree

Proves BAC = 20 degree

20 degree is used in BAC workings above in bold and proves all trapezoid angles are correct. We now know this is an isosceles trapezoid and that is why symmetry and midway points can help us find the angles without any given length.

Kitty buys hot chocolate sachets. There are 14 hot chocolate sachets in a small box. A small box costs £3.49. Kitty uses 3 hot chocolate sachets each day. Work out the how much Kitty spends on hot chocolate sachets in a four-week period.

Answers

Answer:

24.43

Step-by-step explanation:

first find the price of One sachets

next Find the no. of sachets consumed for four weeks..

and at last the product of the price of one sachet and no. of sachets consumed will give the answer...

Mathematical operation are above...

Plz Help me Asap. And explain

Answers

Answer:

n=(1/6) or n=-5/2

Step-by-step explanation:

|6n+7|=8

6n+7=8 or 6n+7=-8

6n=1 or 6n=-15

n=(1/6) or n=-5/2

Yausjsbsjajajianaghaakajjjsjsksmsns

Find the area of the shape shown below.

Answers

Answer:

31.5

Step-by-step explanation:

We can add the areas together

We have a rectangle and a triangle

The area of the rectangle is

A = lw

   = 7*3

   = 21

The area of the triangle is

A = 1/2 bh

   = 1/2 (7)*3

   = 21/2

   = 10.5

Add them together

A = 21 + 10.5

   =31.5

Answer:

31 1/2

Step-by-step explanation:

You find the area for the triangle on top and the rectangle on the bottom. In order to find the area of the triangle, multiply 7 and 3. Then divide the product which is 21 by 2. So the area of the triangle is 21/2 which could also be written as 10 1/2. Next, you find the area of the rectangle which is 7x3. You get 21. Finally, you add the two areas to get 31 1/2. It could also be written as 63/2 or 31.5

Club members wrote a program together, with several people working on each of 4 parts. If the first part of the program required 1/3 of the total time, the second part needed 1/2 of the remaining time, the third part took 30 minutes, and the fourth part took 60 minutes, how many hours did the program take to write?

Answers

Answer:

Step-by-step explanation:

4 parts: 1/3 + 1/2 + 30min + 60min

1/3 of an hour is = 20 minutes

1/2 of an hour is 30 minutes

20 + 30 + 30 + 60(1h)= 140 minutes = 2 hours and 20 minutes

The total time did the program take to write is  2 hours and 20 minutes.

It is required to find total time.

What is arithmetic?

The branch of mathematics dealing with the properties and manipulation of numbers. a science that deals with the addition, subtraction, multiplication, and division of numbers. Fractions, decimals, percentages, fractions, square root, exponents, and other arithmetic operations are used to achieve mathematical simplifications.

Given that:

several people working on each of 4 parts.

First part = 1/3 of the total time,

The second part = 1/2 of the remaining time,

The third part =30 minutes,

Fourth part= 60 minutes,

So, the total time in hour.

4 parts:

1/3 of an hour is = 20 minutes

1/2 of an hour is 30 minutes

Total time=1/3 + 1/2 + 30min + 60min

=20 + 30 + 30 + 60(1h)

= 140 minutes

= 2 hours and 20 minutes.

So, the total time did the program take to write is  2 hours and 20 minutes.

Learn more about arithmetic here:

https://brainly.com/question/24337087

#SPJ2

Solve the following system. y = (1/2)x^2 + 2x - 1 and 3x - y = 1 The solutions are (____)and (______ ) (remember to include the commas)

Answers

Answer:

x=0, 2. y=-1, 5.

Step-by-step explanation:

y=(1/2)x^2+2x-1

3x-y=1

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

3x-y=1

y=3x-1

-----------

(1/2)x^2+2x-1=3x-1

(1/2)x^2+2x-3x-1-(-1)=0

(1/2)x^2-x-1+1=0

(1/2)x^2-x=0

factor out the x

x[(1/2)x-1]=0

zero property,

x=0, (1/2)x-1=0

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

(1/2)x-1=0

1/2x=0+1

1/2x=1

x=1/(1/2)=(1/1)(2/1)=2/1=2

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

x=0, x=2

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

y=(1/2)(0)^2+2(0)-1=0+0-1=-1

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

y=3(0)-1=0-1=-1

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

y=(1/2)(2)^2+2(2)-1=(1/2)(4)+4-1=4/2+4-1=2+4-1=6-1=5

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

y=3(2)-1=6-1=5

Answer:

The solutions are (0, -1) and (2, 5)

Step-by-step explanation:

y = (1/2)x^2 + 2x - 1 ------ eqn(I)

3x - y = 1

y = 3x - 1 ------------- eqn(II)

Equate eqn(I) & (II)

(1/2)x^2 + 2x - 1 = 3x - 1

Multiply each term by 2

x^2 + 4x - 2 = 6x - 2

x^2 + 4x - 6x = -2 + 2

x^2 - 2x = 0

x(x - 2) = 0

x = 0, 2

Substitute the values of x in eqn(II)

y = 3x - 1

When x = 0

y = 3(0) - 1 = 0 - 1 = -1

y = 3x - 1

When x = 2

y = 3(2) - 1 = 6 - 1 = 5

The solutions are (0, -1) and (2, 5)

During a science experiment, the temperature of a certain substance was recorded at three different times. Use this information to complete the statements below. The time at which the temperature is below 0°C is ___ (3:00,4:00,5:00) The time with the highest temperature is ___(3:00,4:00,5:00) The temperature at 3:00 is ____(closer too, farther from) 0°C than is the temperature at 4:00. HELP ASAP

Answers

Answer:

Step-by-step explanation: The time at which the temperature is below 0°C is 3:00

The time with the highest temperature is 4:00 The temperature at 3:00 is closer too zero than the temp at 4:00

0.8777777777777777777777777777 written as a fraction is _____. 8/9 79/90 81/90

Answers

It’s 8/9 put it in the calculator this is an easy one
79/90. Look at the comments on the first person
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