Mathematics Middle School

15. Sylvia says the first step to solve 5 – 2(x + 1) = 13
will be
3(x + 1) = 13
Explain how you know she is wrong using order of operations, and find the answer.

Answers

Answer 1

Answer:

16

Step-by-step explanation:

13+3-16xydxifxogdyodtod

OYDTODTODPYRYPRY f

dotdyofyofpydoyc

Fjptos rdy doyfupg

Answer 2
you first do -2(x+1) to get 5-2x-2=13
then you do 13-5= 8, then 8+-2=6
so then you have -2x=6
then -x= 3 and you have to times by -1 on both sides to get rid of -x
so the answer would be x=-3

Related Questions

Determine a rational number in between -2 1/4 and -2.8 justify and graph where it would be on a number line

Answers

Answer:

Its going to be on the -5, 0 point

Step-by-step explanation:

please help solve this, i can't figure out how to do it

Answers

you have to show the top of the page!!

Mr. Samual built a circular fenced-in section for some of his animals. The section has a circumference of 55 meters. What is the approximate area, in square meters, of the section? Use 22 7for 휋휋 is has a pic

Answers

Answer:

i think the answer is c.

Step-by-step explanation:

.Just find the radius and then mulitply that.

The answer is C hope this helps

Please help asap
What is the range of the cluster in the scatter plot?


Between 5 m and 7 m

Between 1 m and 6 m

Between 1 s and 9 s

Between 1 s and 3 s
Scatter plot on a first quadrant coordinate grid. The horizontal axis is labeled Time, in seconds. The vertical axis is labeled Distance, in meters. Points are plotted at (one, three), (one, four), (two, two), (two, five), (two, six), (three, one), (three, four), (nine, six).

Answers

It is either 5 and 7

A jogger runs 3/5 of a mile in 1/4 of an hour. If they continue at the same time rate, what is the unit rate of the jogger, in miles per hour?

Answers

If he ran that in that time multiply 3/5 by 4

Answer:2.20

Step-by-step explanation:

4x3=12

12/5=2 2/5 of 2.20

Masses of precious stones are measured in carats, where 1 carat = 200 milligrams.

What is the mass of a 70-dg diamond in carats? HURRY

Answers

Answer:
=35 carts
Explanation:

Describe how you would graph the inequality x is less than or equal to 8

Answers

Answer:

Step-by-step explanation: the inequality itself would be like this

8<x (there should be a line under the “<“ i just can’t make it) then you want to draw a vertical line on the x value 8 and shade to the right of the line.

Answer:

x < 8

Step-by-step explanation:

Less than or equal to = <

More than or equal to = >

Less than = <

More than = >

A rectangular box having no top is three times as long as it is wide, and two times as tall as it is wide. If its volume is 750, what is its surface area?

Answers

[tex]x^{3}[/tex]Answer:

try this

Step-by-step explanation:

[tex]x^{3}[/tex]*[tex]x^{2}[/tex]=750-[tex]y[/tex]


i don’t know the answer to ur problem i just need points !!

Find the area and perimeter of parallelogram.

Answers

Answer:

Area: 40 cm Perimeter: 30 cm

Step-by-step explanation:

When finding the area of a parallelogram, you use the inside length (in this case, 5cm) and the base (8cm). With perimeter, you use the base and the length (6cm).

8*5=40

8+8+6+6=30

is 4/3y=x a direct variation?

is y-7x=0 a direct variation?

is y=2x+4 a direct variation?

Giving Brainliest to the first CORRECT answer. I will delete your answer if you try to just get the points!!! So, I would advise just to answer the question with smarts in reward of Brainliest! :)

Answers

Answer:

1 yes 2 no 3 no

Step-by-step explanation:

1 yes 2 no 3 no...........

In 1970 there were estimated to be around 40,000 Bengal Tigers in the world. The population of Bengal Tigers decreased by an average of 5 percent per year since 1970. Write an equation to represent the population change of Bengal Tigers for x number of years.

Answers

Answer:

Step-by-step explanation:

y = (40000)0.95^t

t = time in years

Answer:

40000-5%x

Step-by-step explanation:

I know

I WILL GIVE 69 POINTS AND BRAINLIEST TO WHOEVER ANSWERS ALL 5 QUESTIONS

Answers

you can only see the top sentence
The first answer is c I believe

C. Would the number 14 be in the solution set? Tell why or why not.

Answers

Answer:

Yes

Step-by-step explanation: cause you replace the set and evaluate both sides and if both sides are equal the solution is true

Yes because you then replace the set and then evaluate the both sides!

Each cube inside the rectangular prism has an edge length of 3/4 inch. What is the volume of the rectangular prism?

Answers

Answer:

9in

Step-by-step explanation:

Answer: 81 in

Step-by-step explanation:

pls mark brainliest if can or just give a thanks

Hello! May You Please Help Me worth 28 Percent of my grade this semester Giving Brainliest!

Answers

Ok so the first question was 61 and question 14 is 4194304

Help brainliest and 34 POINTS

Answers

Answer:

What do u need help with

Step-by-step explanation:

Uwill get a free hamster if u get this right

Answers

Answer:

1.multiplaction propertys

2.commutive property

Step-by-step explanation:

now were my Hamster!!!

Answer:

Step-by-step explanation:

Number one is a

number two is b

Do not steal my points i will report
DONT LOOK AT THE ONE I MARKED JUST FIGURE IT OUT

Answers

1: dont be so rude we’re trying to help u 2: i think 24
lol uh its prolly 24

PLEASE HELP ASAP
Answer correctly

Answers

Answer:

62,100

Step-by-step explanation:

I will give brainliest for the correct answer! Please help it’s due today!

Answers

one iron atom so yeah

PLZ HELP ME TO SOLVE THIS!

Answers

7. V= LWH

V= 3/4 x 3/4 x 3/4
V= 27/64 yd cubed

8. V = LWH

V= 10 1/2 x 16 1/2 x 6
V= 1039 1/2 ft cubed

9. Box A:
V=LWH
V=4 x 2 1/2 x 1/2
V= 5 ft cubed

Box B:
V = LWH
V=2 x 1 1/2 x 1 1/2
V= 4 1/2 ft cubed

So box A has a greater volume since 5 is greater than 4 1/2

Answer:

7. V= LWH

V= 3/4 x 3/4 x 3/4

V= 27/64 yd cubed

8. V = LWH

V= 10 1/2 x 16 1/2 x 6

V= 1039 1/2 ft cubed

9. Box A:

V=LWH

V=4 x 2 1/2 x 1/2

V= 5 ft cubed

Box B:

V = LWH

V=2 x 1 1/2 x 1 1/2

V= 4 1/2 ft cubed

So box A has a greater volume since 5 is greater than 4 1/2

Step-by-step explanation:

help me plssssssssss

Answers

Answer:

no i am assuming

(if its not no please tell me)

Step-by-step explanation:

It’s no I’m pretty sure

Find the area and perimeter of parallelogram.

Answers

Answer:

2 * 4  then repeat

anna​'s car can go 248 miles on 8 gallons of gas. During a drive last​ weekend, used 7 gallons of gas. How far did ​drive?

Answers

Ana drove 312 miles in 8 gallons

Answer:

31 miles

Step-by-step explanation:

divide 248 by 8

The next weekend after the camping trip, Lin and Diego each decide to cook a large batch of oatmeal to have breakfasts ready for the whole week. (Note: The instructions for a large batch say, “Bring 15 cups of water to a boil, and then add 6 cups of oats.”)



Lin decides to cook 5 cups of oats. How many cups of water should she boil?

Answers

He should boil 12.5 gallons of water for 5 cups of oats.

Which of the following would have the greatest effect on the size of tides on Earth?

A. Slowing the rate of rotation of the Moon.

B. Increasing the rate of revolution of Earth.

C. Decreasing the distance between the Moon and Earth.

D. Increasing the distance between the Moon and the Sun.

Answers

B. Increasing the rate of the revolution of the earth

The greatest effect on the size of tides on Earth would be C. Decreasing the distance between the Moon and Earth.

What are tides?

Tides are the regular rise and fall of the sea level caused by the gravitational pull of the Moon and the Sun on the Earth. When the gravitational pull of the Moon or the Sun is strongest in a particular area, it causes the water to bulge and forms high tides.

Tides are caused by the gravitational pull of the Moon and the Sun on Earth's oceans. The strength of this pull is proportional to the mass of the Moon and the Sun and inversely proportional to the square of the distance between them and Earth. So, decreasing the distance between the Moon and Earth would increase the gravitational pull of the Moon, causing larger tides.

Slowing the rate of rotation of the Moon (A) would likely have a small effect on tides.

Increasing the rate of revolution of Earth (B) would not have a significant effect on tides.

Increasing the distance between the Moon and the Sun (D) would not have a significant effect on tides as the Sun's gravitational pull on the Earth's oceans is much weaker than that of the Moon.

Learn more about tides here:
https://brainly.in/question/9624375
#SPJ6

Debora plans to sew 3 blankets for each of her nieces.

Which equation represents how many blankets, b, Debora will sew for n nieces?

Use your answer to question 6 to help you check if you have the correct equation.


A
3b = n

B
n + 3 = b

C
3n = b

D
nb = 3

Answers

Answer:

C

Step-by-step explanation:

3 blankets per 1 niece so

3 per n is = to the number of b

Answer:

C

Step-by-step explanation:

3 blankets per 1 niece so

3 per n is = to the number of b

2 Examine the graph shown below. 1 2 1 3 2 Enter the slope of the line.​

Answers

Answer:

4/5 or 0.8

Step-by-step explanation:

Answer:

the slope is 2,3  

Step-by-step explanation:

How can you tell whether a function is a linear function?

A. Graph it and check to see if the graph is a straight line.

B. Check to see if it fits the pattern y = a + bx.

C. Look at the slope and make sure it's always changing.

Answers

Answer:

a

Step-by-step explanation:

I'm pretty sure that's it

The correct answer is A

Please help me with acellus

Answers

I know its something‍♂️
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