Mathematics High School

Evaluating Expressions
Use the order of operations to help you solve,
56 + 9x2
100 + 5 X4
8 X 12 - 6

Evaluating ExpressionsUse The Order Of Operations To Help You Solve,56 + 9x2100 + 5 X48 X 12 - 6

Answers

Answer 1

Answer:

See below for steps and answers, but answers are:

74

5

90

Step-by-step explanation:

Order of operations is: PEMDAS = parentheses, exponents, multiplication, division, addition, subtraction

1. 56 + 9 x 2

first we multiply:

= 56 + 18

then we add:

=74

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

2. 100 / 5 x 4

first we multiply:

= 100 / 20

then we divide 100 by 20:

= 5

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

3. 8 x 12 - 6

first we multiply:

= 96 - 6

then we subtract:

= 90

Related Questions

Which of the coordinate points below will fall on a line where the constant of proportionality is 1/4? Select all that apply. A) (4,1) B) (8,12) C) (12,3) D) (20,5) E) (12,6)

Answers

Answer:

A) (4,1)  C) (12,3) D) (20,5)

Step-by-step explanation:

Required

Which has a constant of proportionality of 1/4

To solve this, we make use of:

[tex]y = kx[/tex]

Where k is the constant of proportionality.

Solve for x

[tex]k = y/x[/tex]

Testing the given options

A) (4,1)

[tex]k = y/x[/tex]

[tex]k =1/4[/tex]

B) (8,12)

[tex]k = y/x[/tex]

[tex]k =12/8[/tex]

[tex]k =3/2[/tex]

C) (12,3)

[tex]k = y/x[/tex]

[tex]k = 3/12[/tex]

[tex]k = 1/4[/tex]

D) (20,5)

[tex]k = y/x[/tex]

[tex]k = 5/20[/tex]

[tex]k = 1/4[/tex]

E) (12,6)

[tex]k = y/x[/tex]

[tex]k =6/12[/tex]

[tex]k =1/2[/tex]

read and answer this thanks yall so much

Answers

Answer:

Step-by-step explanation:

48

The volume of a rectangular prism is 12 cubic inches. One of the dimensions of the prism is a fraction. What could the dimensions of the prism be? Give two possible answers.

Answers

Answer:

Step-by-step explanation:

12 = 24 * 1 * 1/2

12 = 36 * 1 * 1/3

These are 2 possible answers.

There are many more.

Select the equation that is in standard form.


a

y=7x+2

b

y-7=x+8

c

2x+8y=3

d

y=x

Answers

Answer: c
Explanation: the standard form for linear equation in two variables is ax+ by= c

John Bought 1 pound of potatoes and 3 pounds of tomatoes at the grocery store he paid a total of $11.75 if the potatoes cost $2.48 per pound what is the cost of a pound of tomatoes

Answers

Answer:

ud wana take away the cost of one pound of potatoesso 11.75 take away 2.48 so 9.27 divided by three 3.09 per pound for tomatoes

Help ASAP please now please don’t comment unnecessary

Answers

Answer:

Hope that helps!!

18.84x


can some one help me. The first person to get it right gets brainliest

Answers

Answer:

-4.5, 5

Step-by-step explanation:

the first number (-4.5) goes on the x-axis which is the bottom. I goes between the -4 and the -5

The second number (5) goes on the y-axis where it says 5

Explain how to simplify the rational expression x2 - 2x -89x2 - 16x2 - 163x2 + 10 x + 8. (be sure to include the simplified rational expression)

Answers

Answer:

267x2 -8x -8 where

x=- 4± 2√ 538/267

Step-by-step explanation:

x2 - 2x -89x2 - 16x2 - 163x2 + 10 x + 8

= x2  -89x2 - 16x2 - 163x2  - 2x+ 10 x + 8

= -267x2+8x +8

= 267x2 -8x -8

First the like terms are arranged and then added . All the co efficients of x2 are added and x are added separately.

Using the quadratic equation to find the value of x

a= 267 , b= -8 and c= -8

x= -b±√b²- 4ac/ 2a

x= -8±√64 +8544/534

x= -8±√8608/534

x=-8±√ 2 x 2 x 2 x 2 x 2 x 269/534

x=-8± 4√ 2 x 269/534

x=- 4± 2√ 2 x 269/267

x=- 4± 2√ 538/267

help me plzz pleased ​

Answers

Answer:

jeez, one lazy person must you be if you dont have time to finish this xD

answer is 181

Step-by-step explanation:

well first divide the two objects, a triangle, and a rectangle. Now we have no idea what the bottom of the triangle is so lets calculate that. 18 - 2 -5 = 11

so the triangles dimesions are a10, b11.  Now we have to implement the pythagorem theroem since it doesnt give us the side "c". its a simple a^2+b^2=c^2. so side "c" is 14.866. now we can calculate and add everything together. so 18*7=126. and the triangles area is 55. so add 126+55 and viola. you get 181. Im a bit skeptical that i got something  wrong but i hope its all correct. hope this helps!

A package of screen protectors for an iPhone
are priced $12.99. What is the price of the screen
protectors after 6% sales tax?

Answers

Answer: $13.77

Step-by-step explanation:

To get the final price for the screen protectors, we have to calculate the value of the tax and add to the current price of the screen protector.

The sales tax will be:

= 6% × $12.99

= 6/100 × $12.99

= 0.06 × $12.99

= $0.7794

The price of the screen protector will now be:

= $12.99 + $0.7794

= $13.7694

= $13.77

1) Find a formula for a sub n for the arithmetic sequence a sub 1 = 7, d = 12.


2) Write the first 5 terms of the geometric sequence a sub 1 = 2, r = 2.

Answers

Answer:

Step-by-step explanation:

nth term = a₁ + (n-1)d = 7 + (n-1)12

:::::

nth term = a₁rⁿ⁻¹ = 2×2ⁿ⁻¹ = 2ⁿ

a₁ = 2

a₂ = 4

a₃ = 8

a₄ = 16

a₅ = 32

If you go to New Buffalo ice cream shop "Oinks" they have 48 ice cream flavors to choose from. Your parents say you can choose one ice cream flavor and pick one of the 12 toppings, how many different ice cream sundaes could you create?


576

517

69,668,534,468

60

Answers

Answer:

576

Step-by-step explanation:

just multiply 48 by 12

Answer:

576

Step-by-step explanation:

48 ice cream flavors

12 toppings

48 x 12 = 576

Cheese sticks that were previously priced at "10 for $1" are now "4 for $1". Find each percent change

Answers

Answer:

The price per cheese stick was increased by 150%.

The amount of cheese sticks per $1.00 has decreased by 60%.

Step-by-step explanation:

The price per cheese stick was $0.10

1.00 (dollar) divided into 10 (cheese sticks) gives you 0.1, which means each cheese stick costs $0.10

The current price per cheese stick is $0.25

1.00 (dollar) divided into 4 (cheese sticks) gives you 0.25, which means each cheese stick costs $0.25

That means the price per cheese stick was raised by 150%.

That also means the amount of cheese sticks you could buy for $1.00 has decreased by 60%.

I need help please!!!

Answers

D) The measures of the non- right angles in each triangle .

The expression - - is equivalent to

Answers

Answer:

d

Step-by-step explanation:

multiply the left side by 3 on the top and bottom to get 12x/15

then multiply the right side by 5 on the top and bottom to get 10x/15

then subtract 12x/15 and 10x/15 to get 2x/15

Answer:

D. [tex]\frac{2x}{15}[/tex]

just simplify

[(-6) + 5] ÷ [(-2) + 1]

Answers

Answer:

Answer is 1

Explanation:

(-6 + 5) / (-2 + 1)

-1 / -1

1

Step-by-step explanation:

(-1)÷(-1)=1 Answer

hope you understood.....

Comment if not understood

This is for math class. Help me plz. Need this done by today mid-night.

Answers

5.99+.25d+10p+2.99
Mark me brainliest if u can

2
In the accompanying diagram of circle O, m m What is the measure of CD?
A 104°

B 80°

C 52°


D 40°

Answers

it’s D i’m sure of it sorry if i’m wrong tho

Help me out it was hard

Answers

The answer is: 2097
It’s the only logical answer

How do you get 4y-4x=16 into slope intercept form simplifying all fractions?

Answers

To begin, you can divide the equation by 4 to get y-x = 4. Next, the slope-intercept form of any equation is y=Mx+b, so your answer will be y=x+4

Suppose a city with population 600,000 has been growing at a rate of 3​% per year. If this rate​ continues, find the population of this city in 22 years.

Answers

Answer:

The answer should be around 1,149663 (Rounded off to the nearest whole number. Also if a population has a remainer you usually add it as 1. This is because these are people)

Step-by-step explanation:

First step involves listing the formulas being used:

600,000= population, 0.03= growth rate 22years= period

Therefore, we take the 600,000 and multiply by 1+0.03 ^22(to the power of 22 or period)

So, 600,000(1+0.03)^22

=1,149662.045 /1,149663

Hope this helps!

99% of 71.6 is what?

Answers

Answer: 70.884

Step-by-step explanation:

Find the area of the figure below 8 inches, 5 inches

Answers

Answer:

ITS 40

Step-by-step explanation:its 8 because 8x5 is 40:5 10 15 20 25 30 35 40

calculate the average rate of change in grams per day from dat 1 to day 7

Answers

Answer:

1.43 is correct answer .

there data are given for 8 days

but we have to use only 7 days data

Chloe was given a large box of 36 chocolates for her birthday. If she eats exactly 2 chocolates each day, how many chocolates would Chloe have remaining 8 days after her birthday?

Answers

Answer:

20 chocolates

Step-by-step explanation:

I got 20 chocolates as my answer because I multiplied the 2 chocolates eaten each day by the 8 days. She eats 2 chocolates each day for 8 days. 8x2=16. Then, I took the 36 chocolates and subtracted 16 chocolates eaten to get the answer of how many chocolates are left. 36-16=20. Therefore, Chloe has 20 chocolates.

Chloe has 20 chocolates remaining 8 days after her birthday.

Evaluate.

2^3+4⋅2−7

1
5
9
36

Answers

Answer:

[tex]9[/tex]

Step-by-step explanation:

[tex] {2}^{3} + 4 \times 2 - 7 \\ 8 + 8 - 7 \\ 16 - 7 \\ 9[/tex]

Hope this helps you.

Can I have the brainliest please?

Have a nice day !!!!!!!!!!!!!

Answer:

i am from brazil

Step-by-step explanation:

i can not answer

answer only thx thx IMAOSJSJA

Answers

Answer:

5) 48

6) 60

Step-by-step explanation:

A spinner is divided into equal sections, each labeled with a number between 1 and 5? Over the course of 150 spins, what is the best estimate of how many times you would expect that the hand of the spinner will stop on a 3? Need it kinda fast but take your time.

Answers

Answer:

30 times

Step-by-step explanation:

The computation of the number of times that expected to stop on 3 is as follows:

Since there are 150 spins

And, each labeled with a number that lies between 1 and 5

So the number of times should be

= 150 ÷ 5

= 30 times

Hence, the number of times would be 30

Anyone wanna fight? 12x76-8(456-98)=

Answers

Answer:

-1952

Step-by-step explanation:

Answer:

1952

Step-by-step explanation:

12 x 76-8(456-98)

912-8 x 358

912-2864

1952

Solve for x. Round your answer to the nearest tenth
19
16

Answers

Can’t solve without equation

The variable x is the hypotenuse, and the value of x in the right triangle is 24.8

How to determine the value of x?

The complete question is a right triangle, where x is the hypotenuse.

So, the equation of x is:

[tex]x^2 = 19^2 + 16^2[/tex]

Evaluate the sum of exponents

[tex]x^2 = 617[/tex]

Take the square root of both sides

x = 24.8

Hence, the value of x is 24.8

Read more about right triangles at:

https://brainly.com/question/2217700

#SPJ2

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