Maggie has 4 binders with 30 stamps in each binder. She has 3 binders with 36 baseball cards in each binder. If she gives away 45 stamps to a friend, how many stamps and cards does she have left? Maggie has stamps and cards left.

Answers

Answer 1

Answer:

The number of stamps and cards Maggie has left if she gives 45 stamps to a friend is 183

Explanation:

If Maggie gives 45 stamps to a friend, you must calculate the number of stamps and cards she has left.

You know Maggie has 4 folders with 30 stamps in each folder. So the number of stamps she owns is calculated as:

4 folders*30 stamps in each folder= 120 stamps

If Maggie gives 45 stamps to a friend, then the number of stamps she has left will be calculated as the difference (the subtraction) between the stamps she owned and the ones she gives away:

120 stamps - 45 stamps= 75 stamps

On the other hand, she has 3 binders with 36 baseball cards in each binder. So the number of cards she owns is calculated as:

3 binders * 36 baseball cards in each binders= 108 baseball cards

The number of stamps and cards you have left is calculated as:

75 stamps + 108 baseball cards= 183

The number of stamps and cards Maggie has left if she gives 45 stamps to a friend is 183


Related Questions

I GIVE BRAINLIEST TO WHO EVER GETS IT RIGHT!
which two scientist proposed an atomic model with a nucleus?

A.) Thomson

B.) Bohr

C.) Dalton

D.) Rutherford

Answers

Answer: B. Bohr and  D. Rutherford

Compression is the type of stress that deforms rock at which location ?

Answers

Answer:

Compression is common at convergent boundaries, tension in divergent boundaries, and shear at transform boundaries.

Explanation:

The three main types of stress go along with the three types of plate boundaries. Rocks can bend and fold. Rocks can also fracture and break.

The three main types of stress go along with the three types of plate boundaries. Compression is common at convergent boundaries, tension at divergent boundaries, and shear at transform boundaries. Rocks can bend and fold. Rocks can also fracture and break.

WILL GIVE BRANLIEST!!

Carbon tetrachloride (CCl4) is
ionic
covalent

Answers

Answer:

Covalent

Explanation:

In the carbon tetrachloride molecule, four chlorine atoms are positioned symmetrically as corners in a tetrahedral configuration joined to a central carbon atom by single covalent bonds

Answer:

Carbon tetrachloride (CCl4) is ✔ covalent.

Answers to assignment question:

What properties would you expect for CCl4? Select all that apply.

It is likely a gas or liquid at room temperature.

It is likely soluble in water.

It will likely light up a bulb in a conductivity apparatus.

It will likely have a high melting point.

Calcium oxide (CaO) is ✔ ionic.

What properties would you expect for CaO? Select all that apply.

It is likely a gas or liquid at room temperature.

It is likely soluble in water.

It will likely light up a bulb in a conductivity apparatus.

It will likely have a high melting point.

Explanation:

all correct on edge! :D

A student investigated the time taken for amylase to breakdown a 10% starch solution into glucose at
37°C. The student repeated the investigation five times
Figure 11 shows the results
time taken for amylase to produce glucose (s)
Test 4
120
125
110
115
Figure 11
() Calculate the rate of amylase enzyme activity for the 10% starch solution.

Answers

Answer:

Phenolphthalein is an indicator. It is pink in alkaline solutions and turns colourless as the pH decreases.

It can be used to measure the activity of the enzyme lipase on the breakdown of lipids.

Samples of milk containing phenolphthalein were incubated with lipase at different temperatures.

The time taken for the phenolphthalein to turn colourless was recorded and used to calculate the rate of enzyme activity.

Figure 10 shows these results.

Picture

(a) (i) Explain why phenolphthalein turns colourless when lipase breaks down the lipids in milk. (2)

(ii) Describe the effect of temperature on the activity of lipase, as shown in Figure 10. (2)

(iii) Explain why the activity of lipase changes above a temperature of 40°C. (2)

(b) A student investigated the time taken for amylase to breakdown a 10% starch solution into glucose at 37°C. The student repeated the investigation five times.

How many grams of aluminium chloride are produced when 123.2g of chlorine react with aluminium

Answers

Answer:

Mass = 154.67 g

Explanation:

Given data:

Mass of aluminum chloride produced = ?

Mass of chlorine = 123.2 g

Solution:

Chemical equation:

2Al + 3Cl₂  →   2AlCl₃

Number of moles of chlorine:

Number of moles = mass/molar mass

Number of moles = 123.2 g/ 71 g/mol

Number of moles =1.74 mol

Now we will compare the moles of aluminum chloride and chlorine.

                          Cl₂              :              AlCl₃

                            3               :                 2

                           1.74            :          2/3×1.74 = 1.16 mol

Mass of AlCl₃:

Mass = number of moles × molar mass

Mass =  1.16 mol × 133.34 g/mol

Mass = 154.67 g

What are the parts of an electron configuration?

Answers

Answer:

Explanation:

electronic confirmation=1s^2,2S^2,2P^6,3S^2

atomic no.is 12 therefore :- this is magnesium

Period=3

Block=s-block

Group=II A

Which terms are used to identify pure substances?

Answers

Answer:

mabey c or d

Explanation:

color, odor, density, melting temperature, boiling temperature, and solubility are examples of physical properties. Physical properties can be used to identify a pure substance.

:answer question number 10

Answers

Answer:

the last one

Explanation:

I'm pretty sure

Answer:

Particles on each are constantly moving (the last one)

Boron- 11
Atomic #
Atomic mass
# of protons
# of neutrons
# of electrons

Answers

Answer: 5 protons 6 neutrons and 5 electrons. and atomic number is 5.

Hope this helps!

Mention any three ways of making salt. (please help me Asap)​

Answers

Solar Evaporation Method. This is the oldest method of salt production. ...
Rock Salt Mining Method. Morton also uses the second oldest method of producing salt – underground mining. ...
Vacuum Evaporation Method.

1. Lauri conducts an experiment to investigate how the mass of a catalyst, manganese (IV) oxide, affects the rate of production of oxygen during the decomposition of hydrogen peroxide (H2O2). Water and heat are also produced during the decomposition.

(a) (i) Name TWO factors OTHER THAN a catalyst, which can affect the rate of a chemical reaction. (2mks)
 
(ii) Write a balanced equation to show the decomposition of hydrogen peroxide by manganese (IV) oxide, MnO2(s) (2mks)

Answers

a)(I)the concentration of the reactants

the temperature

ii)

In the cell, amino acid molecules combine to form

Answers

Answer:

A polypeptide chain!

Explanation:

Hopefully this helps! If this wasn't the answer you were looking for please don't hesitate to comment here or private message me! Have a nice day/night! :))

Amino acids are the fundamental building blocks of proteins. In the cell, amino acid molecules combine to form polypeptide chain or protein.

What are amino acid ?

The term amino acids are defined as the building block of the protein. Amino acids are the fundamental building blocks of proteins. Their molecule contains both an amino and a carboxylic group.

Alpha-amino acids are amino acids that have an amino and a carboxyl group attached to the same carbon atom, i.e., an alpha-carbon atom. Glycine, Alanine, etc.

Proteins are made up of monomers called amino acids. A protein is composed of one or more linear chains of amino acids, each of which is referred to as a polypeptide.

Thus, In the cell, amino acid molecules combine to form polypeptide chain or protein.

To learn more about an amino acid, follow the link:

https://brainly.com/question/14583479

#SPJ2

Alguien me puede hacer el favor de ayudarme con estos 3 ejercicios de balanceo de ecuaciones por oxido reducción por favor 1. Fe2O3 + CO → Fe + CO2 2. Al2O3 + C + Cl2 → CO + AlCl3 3. H2S + O2 → SO2 + H2O

Answers

Answer:

1. Fe₂O₃ + 3CO → 2Fe + 3CO₂

2. Al₂O₃ + 3C + Cl₂ → 3CO + 2AlCl₃

3. 2H₂S + 3O₂ → 2SO₂ + 2H₂O

Explanation:

Para balancear ecuaciones redox se acostumbra a usar el método ion-electrón, hay que determinar qué elemento se oxida y cual se reduce lo que a la vez significa, aumento del número de oxidación o descenso del mismo.

1. Fe₂O₃ + CO → Fe + CO₂

Para este caso, el hierro se reduce, pasando de Fe³⁺ a Fe⁰ o lo que se dice estado fundamental.

Fe³⁺  +  3e⁻  → Fe

El carbono del CO se oxida a CO₂ donde el carbono pasa de C²⁺ a C⁴⁺

C²⁺  →   C⁴⁺ + 2e⁻

Como los electrones quedaron desbalanceados multiplicamos por 2 y 3 las semi reacciones

(Fe³⁺  +  3e⁻  → Fe ) . 2

2Fe³⁺  +  6e⁻  → 2Fe

(C²⁺  →   C⁴⁺ + 2e⁻) . 3

3C²⁺  →   3C⁴⁺ + 6e⁻

Ya podemos balancear la ecuacion final:

Fe₂O₃ + 3CO → 2Fe + 3CO₂

(como ya tenemos 2 atomos de hierro en el oxido, no haría falta agregar el 2 en la estoquiometría)

2. Al₂O₃ + C + Cl₂ → CO + AlCl₃

En este caso el carbono se oxida, y el cloro se reduce

C →  C²⁺  +  2e⁻

Cl₂ + 2e⁻ → 2Cl⁻

Como el cloro es una molécula diatómica por cada cloro que se reduce, tendremos dos cloruros, tomando los 2 electrones que libera el C.

En este caso los electrones están balanceados

Al₂O₃ + C + Cl₂ → CO + 2AlCl₃

Han quedado desbalanceados el C y el O, asi que no queda otra que completar con la estequiometría

Al₂O₃ + 3C + Cl₂ → 3CO + 2AlCl₃

3.  H₂S + O₂ → SO₂ + H₂O

El O₂ se está reduciendo, pasando de 0 a -2

El S del ácido se oxida de +2 a +4

O₂ + 4e⁻ → 2O⁻²

Son dos atomos de O, que cada átomo puede atrapar dos electrones, por ende, consigue enlazar 4 electrones en total

S⁺²  → S⁴⁺ + 2e⁻

Como los electrones quedaron desbalanceados, completamos multiplicando la segunda semi reaccion x2

2S⁺²  → 2S⁴⁺ + 4e⁻

O₂ + 4e⁻ → 2O⁻²

2H₂S + O₂ → 2SO₂ + 2H₂O

Ya que el oxigeno quedó desbalanceado en el lado producto, completamos con la estoquimetría

2H₂S + 3O₂ → 2SO₂ + 2H₂O

A copper rod takes up 75 mL of space. With a density of 8.96 g/mL, what is the mass of the rod

Answers

5.73 is the mass of the rod

different type of flatbread

Answers

All I know is Pita lol

Which of the following is an example of Newton’s 2nd Law? A. A bowling ball requires more force to roll than a tennis ball B. Sitting in a chair C. A rocket blasting off D. All of the above

Answers

Answer:

The answer is A.

Explanation:

The question asks me to classify the reaction
CO2 (g)+H20(1) H2CO3 (aq)​

Answers

H2O(l) + CO2(g)=H2CO3(aq)
It would be combination reaction.

Chemical bonding is the combining of elementa to form

-energy levels
-atoms
-electrons
-compounds

Answers

The answer is compounds.

Which of the choices is an example of an element?
O CO
O Co
O C2H2O2
O CO2

Answers

Answer:

Co(cobalt) is the answer

Explanation:

Cobalt is a chemical element with the symbol Co and atomic number 27. Like nickel, cobalt is found in the Earth's crust only in chemically combined form, save for small deposits found in alloys of natural meteoric iron. The free element, produced by reductive smelting, is a hard, lustrous, silver-gray metal.

A sample of which element could have a volume of 1.5 cubic centimeters (cm3) and a mass of 7.5 grams (g)?

Answers

Answer:

5 g/cm³

Explanation:

The density of a substance can be found by using the formula

[tex]density = \frac{mass}{volume} \\ [/tex]

From the question we have

[tex]density = \frac{7.5}{1.5} \\ [/tex]

We have the final answer as

5 g/cm³

Hope this helps you

Continental waters are classified into two categories Lentic and Lotic. Ecosystem has flowing waters; such as creeks, streams, rivers, springs, brooks and channels. A lentic Ecosystem has still waters such as ponds, marshes,ditches, reservoirs, and lakes. The ecosystem of Lentic and Lotic waters includes biotic (Living) interactions between plants, animals and micro- organisms, and abiotic (non living) physical and chemical interactions.

A) Fish
B) algae
C) Bacteria
D) water flow

Answers

Answer:

it is D

Explanation:

Classify the triangle based on the side lengths 9, 40, and 41

Answers

Answer:

That's a right Triangle

Explanation:

algebra.com

Answer:

scalene triangle

Explanation:

Scalene triangles don't have any equal side lengths.

Identify the major force between molecules of pentane and hexane

Answers

Answer:

induced-dipole induced dipole forces.

Explanation:

What is the molar mass of H2SO4?

Answers

Answer:

98.08g/mol is your answer

Explanation:

hope this helps

write this number in scientific notation 41, 820, 000

Answers

Answer:

4·1×10∧-7

Explanation:

[tex]\mathrm {Hey, there!}[/tex]

Let's solve your problem -

The answer to the question is 4.18 10^7.

Here is my clarification/explanation to support:

To convert a standard number to scientific notation, we have to move the decimal point up until we have a 1 digit number.

When we keep moving the decimal point, we get 4.18

Now, we will count the numbers after the 8 to get the 10 area.

There are five numbers after the 8, so we get 10^5.

Now, we will add 2 more to the 5, we get 10^7

Our answer will be: 4.18 10^7

[tex]\mathrm {Best, of, Luck!}[/tex]

What is the temperature of a gas if the container has a volume of 2,300 mL, with a pressure of 932 mmHg and 3.51 moles?

Answers

Answer:

The preceding temperature is equivalent to approximately 9.6 K => -263.5 °C

Explanation:

Given the provided problem, the formula may be substituted by the corresponding values:

Pressure (P)= 932 mmHg ==> 1.2 atm

Volume (V) = 2,300 mL ==> 2.31 L

Moles (n) = 3.51 moles ==> 3.51 mol

Proportional constant of ideal gas constant: (R) = 0.08206

Therefore, we can equate the following:

T= (PV)

     nR

T= (1.2 atm · 2.31 L)

   (3.51 mol · 0.08206)

T= 9.6 K ==> -263.5 °C

Thus, the cumulative temperature given the substituents/substance is equivalent to -263.5 °C.      

3. As a ray of white light passes through a prism, dispersion occurs. Which among the color of
the visible spectrum refracted the MOST?
C. Green
A. Yellow
B. Red
D. Violet​

Answers

Your answer is option b

i.e. Red

because refractive index of red is more as compared to green, yellow and violet...

Pleaseeesseeeeesssseredseeeesss

Answers

Answer:

B. Electrons travel through the sol

Explanation:

thats your answer :)

Tubbo or TommyInnit? Choose wisely.

Answers

Answer:

Tubbo

Explanation:

more informational

Tubbo is my top pick

What types of atoms typically form covalent bonds?


A. Metals with nonmetals, because their difference in electronegativity is above 1.7.

B.Metals with nonmetals, because their difference in electronegativity is below 1.7.

C.Nonmetals with nonmetals, because their difference in electronegativity is above 1.7.

D.Nonmetals with nonmetals, because their difference in electronegativity is below 1.7.

Answers

with nonmetals because their difference in electronegativity is below 1.7


Explanation:

Covalent bonds form between non-metals because their electronegativity difference is below 1.7. An electronegativity difference of this magnitude shows that the combining atoms would equally have a similar affinity for valence electrons when interatomic bonds are forming.
A covalent bond involves the sharing of valence electrons in their outer energy shells in order to mimic the noble gases.
Electronegativity is a measure of an atom to attract valence electrons in chemical bonds.
Non-metals generally have very high electronegativity.
Since the two atoms have high electronegativity, it becomes difficult for an atom to donate electrons from bonding as seen in ionic bonding.
In covalent bonding, the two atoms donates the electrons to be shared.
Example is HCl.
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