1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
joja [24]
2 years ago
9

A store sell 21 piece of clothing every 45 minutes.How long will it take the store to sell 100 pieces of clothing?

Chemistry
1 answer:
zmey [24]2 years ago
3 0

Explanation:

<em>2</em><em>1</em><em> </em><em>piec</em><em>e</em><em> </em><em>=</em><em>4</em><em>5</em><em> </em><em>mins</em>

<em>100</em><em> </em><em>pieces</em><em>=</em><em> </em><em>x</em>

<em>on</em><em> </em><em>cross</em><em> </em><em>mul</em><em>tiplicati</em><em>on</em>

<em>2</em><em>1</em><em>x</em><em>=</em><em>4</em><em>5</em><em>×</em><em>1</em><em>0</em><em>0</em><em>m</em><em>i</em><em>n</em><em>s</em>

<em>2</em><em>1</em><em>x</em><em> </em><em>=</em><em>4</em><em>5</em><em>0</em><em>0</em><em>m</em><em>i</em><em>n</em><em>s</em>

<em>x</em><em> </em><em>=</em><em>4</em><em>5</em><em>0</em><em>0</em><em>m</em><em>i</em><em>n</em><em>s</em><em>÷</em><em>2</em><em>1</em>

<em> </em><em> </em><em>=</em><em>2</em><em>1</em><em>4</em><em>.</em><em>3</em><em>m</em><em>i</em><em>n</em><em>s</em><em> </em><em>or</em><em> </em><em> </em><em>3</em><em>.</em><em>5</em><em>7</em><em>h</em><em>r</em><em>s</em>

You might be interested in
Complete this equation for the dissociation of the electrolyte NaCl(aq). Omit water from the equation because it is understood t
ella [17]

1. Answer;

Equation;

-NaCl(aq) → Na{+}(aq) + Cl{-}(aq)

Explanation;

-The polar property of water allows ionic compounds such as sodium chloride to dissolve in water. (sodium chloride is an ionic compound).

-Sodium chloride dissociates in water into sodium ions and chloride ions as shown by the equation. Water molecules surrounds the negatively charged chloride ions and positive sodium ions and pulls them away into solution.

2. Answer;

Equation;

Fe(ClO4)3(aq) → Fe 3+(aq) + 3ClO4 - (aq)

Explanation;

Iron (iii) perchlorate (Fe(ClO4)3 dissociates in water into iron (iii) ion and perchlorate ion. Iron (iii) ion is positively charged while the perchlorate ion is negatively charged, they are pulled apart by the polar water molecules, a process called dissociation.

-

5 0
3 years ago
Read 2 more answers
HNO3 Express your answers as ions separated by a comma.
erastovalidia [21]
In this item, it is assumed that we are to express the given compound in their ionic form. To be able to determine as to what ions this compound will dissociate into, we have the chemical reaction.

                     HNO3 --> H⁺  + NO₃⁻

Hence, the ions are H⁺, NO₃⁻. 
4 0
3 years ago
What is the S.I unit of pressure?
Vesna [10]

Answer:

pascal(pa)

Explanation:

the unit of pascal (pa), defined as a force of one newton per square meter. the conversion between atm ,pa, torr is as follow : 1 atm =101325 pa= 760 torr.

5 0
3 years ago
Draw the Lewis structure for the Se and 2 H atoms.
notsponge [240]
Here is your answer.

5 0
3 years ago
Match each description below with the name of the local wind system being described. warm, dry downslope wind affecting Southern
nadya68 [22]

Answer:

warm, dry downslope wind affecting Southern California - Santa Ana wind

a seasonally changing wind- monsoon

wind blowing from a valley up a mountain slope - valley breeze

generated by cold thunderstorm downdrafts - haboob

Explanation:

The Santa Ana wind occurs in early autumn. They bring hot and dry weather to areas around the South-West coast. They move at high speeds, affecting most parts of Southern California.

Monsoon is a seasonal wind that blows across Southern Asia. It usually blows in summer. It is a a seasonally changing wind.

Valley breeze is an example of convection current in nature. It is produced by rapid warming of the valley floor leading to the expansion of air making it to flow up the slopes. At night, radiation from the surface cools the slopes. This leads to the rise of cooler and denser air which drains into the valley.

Haboob is generated by cold thunderstorm downdrafts. It is associated with large sandstorms and dust storms.

8 0
3 years ago
Other questions:
  • A ruler has markings as shown below. Stefan uses this ruler to measure the length of a metal rod. How many decimal places should
    5·2 answers
  • Identify the compound that does not have hydrogen bonding. identify the compound that does not have hydrogen bonding. ch3oh h2o
    9·2 answers
  • Determine the molecular mass of a gas where 3.87 g occupies 0.896 l at standard conditions.
    12·1 answer
  • A 28.5 gram piece of iron is added to a graduated cylinder containing 45.5 mL of water. The water in the cylinder rises to the 4
    15·1 answer
  • Which best characterizes a crystal
    15·2 answers
  • When humans plant more trees, carbon can begin entering the ____
    10·1 answer
  • The pressure in car tires is often measured in pounds per square inch (lb/in.2), with the recommended pressure being in the rang
    8·1 answer
  • 352L of chlorine under a pressure of 680. mm Hg are placed in a container under a pressure of 1210 mm Hg. The temperature remain
    14·1 answer
  • Hydrogen (H) and helium (He) are produced in the core of stars in a process called nuclear fusion. Over time stars begin to prod
    8·1 answer
  • How many molecules of sodium oxide will be created if 187 grams of oxygen reacts with excess sodium? 4na o2 -&gt; 2na2o
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!