Leon tried to solve an equation step by step. \qquad\begin{aligned} \dfrac12w-12&=18\\\\ \\ \dfrac12w&=30&\green{\text{Step } 1}\\\\ \\ w&=15&\blue{\text{Step } 2}\\\\ \end{aligned} 2 1 ​ w−12 2 1 ​ w w ​ =18 =30 =15 ​ Step 1 Step 2 ​ Find Leon's mistake. Choose 1 answer: Choose 1 answer:

Answers

Answer 1

Explanation:

The given expression is :

[tex]\dfrac{w}{2}-12=18[/tex]

The value of w can be solved as follows :

Add 12 to both sides,

[tex]\dfrac{w}{2}-12+12=18+12\\\\\dfrac{w}{2}=30[/tex]

Cross multiplying, we get :

[tex]w=2\times 30\\\\w=60[/tex]

Leon should have made mistake at last step where instead of multiplying 2 and 30 he divides 30 by 2 so that he get 15 as answer.

Answer 2

Answer:

Leon's mistake was Step 2


Related Questions

I did my hair half and half I need help right now.

Answers

why your hair probably looks amazing lol
Why did you do that for

True or False: Earth's magnetic field goes through pole reversals.

A. True

B.False

Answers

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True or False: Earth's magnetic field goes through pole reversals.

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True...

Answer:

A.True........................

arrange this EMAIHTPCMER​

Answers

Answer:

METAMORPHIC

Explanation:

Generally, rocks can be classified into three types in nature. they are:  igneous, sedimentary and metamorphic rocks. Each of these rocks has individual mode of formation.

Metamorphic rock is one formed due to the application of heat and pressure on an originally existing rock. Metamorphic rocks are crystalline because of their nature, and contain some minerals.

Thus, arranging the word appropriately gives METAMORPHIC.

Rearranging EMAIHTPCMER would give us the word METAMORPHIC

Metamorphic Rock is one of the types of rock that is formed as a result of subjection to extreme heat and pressure. They are usually a byproduct of igneous and sedimentary rocks.

There are three major types of metamorphic rock and they are:

Contact: This occurs when molten lava directly changes an already existing rockRegional: This happens in a large area, where rocks are broken during mountain buildingDynamic: This is caused by large amounts of heat and pressure on the rocks which make them change shape.

Some examples of metamorphic rocks include:

QuartzSchistGneissSlate, etc

Read more here:

https://brainly.com/question/12613287

name the three ways thaf humans and then enviornment affect each other? give an expample of each​

Answers

Answer:

The  person above me is correct!

Explanation:

Here are the last of my points guys.
WHAT CAUSES OCEAN TIDES???

Answers

Answer:

a gravitational pull

A gravitational pull from the Moon causes the water in the coeans to go up. The ocean water rises because elements from Earth's core and the Moon act like magnets, and the Ocean gets pulled up.

Hope this helps!

EARTH SCIENCE, PLEASE HELP IM DESPERATE!
What is a temperature inversion in the atmosphere?
The Stratosphere and the Thermosphere have temperature inversions in them.
Describe what causes the temperature inversions in each of these two layers the atmosphere?
I'm so clueless of this I need some help

Answers

Answer:

1 A temperature inversion is a deviation from the normal decrease of atmospheric temperature with altitude in the lower portion ( troposphere) of a planetary atmosphere ( atmosphere, Structure). Temperature inversions inhibit vertical motion, because the warmer air is at a higher altitude and tends to remain there.

question 2

An inversion exists when temperature increases with altitude. The figure below shows the four layers: the Troposphere, the Stratosphere, the Mesosphere, and the Thermosphere. Between each layer exists a "pause" in which the temperature remains constant with height.

Which group of people have the ability to access GPS systems locally, nationally and world wide?

Only the capitalists and elite of the world

Anyone with access to wireless internet or advanced radio technology

Anyone with over $500 in technology software

Rural villages and those in high places

Answers

Answer:

Anyone with access to wireless internet or advanced radio technology

Explanation:

Anyone with access to wireless internet or advanced radio technology have the ability to access GPS systems locally, nationally and world wide.

 GPS is the short form of Global Positioning Systems. It is made up of a system of satellites which are used to locate positions on earth. They work on principle of triangulation.

Most of these system of satellites are accessible over a wireless internet. For example, most of our mobile phone have this ability. Also, over advanced radio technology we can access these gps systems. This is used mostly in the military for more secured access.

What are tectonic plates?

Answers

Answer:

When the ground comes clashes together

Explanation:

This map has an indicator in the
corner that explains the map’s orientation.

According to the indicator,
is the direction at the bottom of the map.

France is located
of Germany.

Two major battles took place along Germany’s
border.

Answers

Answer:

Explanation:

Bottom Right

South

West

Northeastern

Iceland is located between the Eurasian and North American
Plates.
What major events should we expect to affect Iceland?
tornadoes,
hurricanes,
volcanoes,
earthquakes?

Answers

Answer:
volcanoes

Explanation:
i looked it up

i hope this helps :)

What is the significance of understanding the characteristics of the earth?

Answers

Answer:

Understanding the characteristics of Earth is important, because it can provide us important knowledge about why it is so unique than any other planet in the solar system

Explanation:

what does"Africa have largest inter tropical location" means​

Answers

Answer:

It likes in the intertropical zone between the Tropic of Cancer and the Sahara Desert. It is one of the hottest on Earth.

Explanation:

Which statement best describes wavelengths of sunlight that are longer than 700 nanometers? These wavelengths form the infrared part of the spectrum. These wavelengths form the ultraviolet light of the spectrum. These wavelengths are shorter than the wavelengths of visible light. These wavelengths are part of the visible light spectrum.

Answers

Answer:

Option A is the appropriate approach.

Explanation:

Throughout reality, the sun produces light across all colors, but rather because yellow would be the strongest wavelength of the sun, that's color that only the image recognizes through our naked eyes, although you can never glance up towards the sky. The infrared portion including its spectrum is created by some of these wavelengths.

The other options offered are not relevant to the situation described. So, the solution here is just the right choice.

Answer:

Answer: These wavelengths are longer than wavelength of visible light. These wavelengths form the infra-red part of the spectrum.Explanation:

These wavelengths form the infra-red part of the spectrum.

Explanation:

Solar spectrum has lies in three parts of the electromagnetic spectrum - Ultraviolet, visible and infra-red.

Visible light lies from 400 nm to 700 nm.

Ultraviolet region precedes visible spectrum and has shorter wavelength than it.

Beyond visible spectrum, infrared part of the spectrum starts and has longer wavelength than it.

Physical features and environmental conditions primarily influence a region's _____.

a.form of government
b.social class system
c.population distribution
d.religious beliefs

Answers

Answer:

c. population distribution

Explanation:

The physical and environmental conditions of a region greatly influence the population distribution of a country. This is because it is these conditions that determine whether many needs of the population will be met.

When the physical and environmental conditions are able to supply the population's needs, it is common for this region to have a larger population distribution, on the other hand, when the physical and environmental conditions are not able to supply these needs, the population distribution is smaller.

Power and legitimacy are the elements that make up ___ A. sovereignty B. control C. authority D. power . Please help

Answers

Answer:

C authority

hope this helps

Answer:

authority

Explanation:

what rock is known for its layers

Answers

Answer:

sedimentary rocks

Explanation:

they're known for their layers because they are formed by particle by particle and bed by bed, and the layers are piled one on top of the other

Answer:

Sedimentary rock

Explanation:

sedimentary rocks are formed in layers over time

What percentage of energy used in the U.S. is
produced from fossil fuels?

Answers

Answer:

About 63% of this electricity generation was from fossil fuels—coal, natural gas, petroleum, and other gases. About 20% was from nuclear energy, and about 18% was from renewable energy sources.

Explanation:

HURRY IM TIMED

Greater education for women tends to decrease the birthrate because it enables women to
O develop a more egalitarian role within society.
recognize the importance of having financial independence.
O have more control over their economic and personal choices.
make an informed choice between motherhood and a career.
O develop new and effective methods of contraception.

Answers

Explanation:

I would say A or B, but it could be either in my opinion. Sorry that I couldn't help anymore than this

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