2)
A barbecue is being planned for 175 people. The ice cream sandwiches for desert cost $1.68 per dozen. It is
assumed that the average number of sandwiches eaten per person will be 1.25. What will it cost to buy ice cream
sandwiches for the barbecue. Solve the problem by dimensional analysis.
Answers
Dimensional analysis is the unitary method that is used to determine the values by multiplication. The cost of the ice cream sandwiches for the barbecue is 367.5 $.
What is dimensional analysis?Dimensional analysis has been defined in maths, physics, and chemistry to solve the problem by multiplying the given numbers to determine the values of the other data. It uses the base quantities to estimate the derived values.
Given,
Number of people at barbecue = 175
Cost of ice cream sandwiches = $1.68 per dozen
The average number of sandwiches per person = 1.25
The cost to buy ice cream sandwiches for the barbecue is estimated by the dimensional analysis as:
12 ice cream sandwiches = $1.68
1.25 ice cream sandwiches = $2.1
If it costs $2.1 for each person then 175 people costs:
$2.1 × 175 = $367.5
Therefore, it will cost 367.5 $ for the barbecue.
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Related Questions
What is the noble gas notation For zinc
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Answer:
The noble gas notation for zinc would be [Ar]3d^104s^2
Explanation:
I hope this helps you:) let me know if it does make sense, okay?
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Why was there no increase in the reaction rate with 8 g of substrate as compared to 4 g of substrate?
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Answer:
Equilibrium over-saturated
Explanation:
In both were excessively-saturated in volume equilibrium and much more molecules would be required to see a growth in reaction rate.
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Which statement about melting and boiling points is true? Question 3 options:
A. As you move down group 7A in the periodic table, the melting and boiling points of the elements decrease.
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what is astrobiology
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Answer:Astrobiology, formerly known as exobiology, is an interdisciplinary scientific field concerned with the origins, early evolution, distribution, and future of life in the universe.
Explanation:
Answer: the branch of biology concerned with the study of life on earth and in space.
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A science student wants to use distillation to separate a mixture of two
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should be significantly different between the two liquids?
h-
ies
h-
Freezing point
Ability to dissolve a solid substance, such as table sugar
1
Ability to react with oxygen
O Boiling point
et
< Previous
Next
Answers
Answer:
Boiling point
Explanation:
Distillation is one of the most widely used separation technique in chemistry. It is used to separate a mixture of liquid substances with different boiling point. Hence, the basis of the separation is BOILING POINT DIFFERENCE.
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What is the mass, in grams, of a 12.0cm³ sample of aluminum? The density of aluminum is 2.70g/cm³
Answers
Answer:
The answer is
32.4 gExplanation:
The mass of a substance when given the density and volume can be found by using the formula
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volume of aluminum = 12 cm³
Density = 2.70 g/cm³
The mass of aluminum is
mass = 2.7 × 12
We have the final answer as
32.4 gHope this helps you
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Answers
Answer:
The big energy change when water freezes is in the potential energy of interactions between the water molecules.
Explanation:
I am not to sure if this is correct, but I hope it helps in some way.
What is a key difference between chemical and nuclear reactions?
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D. In chemical reactions, only alpha radiation is emitted. In nuclear reactions, alpha, beta, and gamma decay may occur.
Answers
Answer:
B
Explanation:
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Answer:
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Explanation:
On August 4, 2020, an explosion estimated at 1.2 kilotons of TNT (dynamite) destroyed
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Answer:
it will take that explosin 15.34 millisecond
Explanation:
as the speed is 767 and distance is 50 so time will be 767/50=15.34milliseconds
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Answers
Answer:
D
Explanation:
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OA. There is no change in color.
OB. There is no precipitate formed.
OC. There is no gas given off.
OD. There is no molecular change,
Answers
Explanation:
Physical change can observe by physical appearance
OA = No change in color
other choices are chemistry change
If 2a=3b and a=6 then b=
Answers
then b is 4
2a=3b since a=6
2x6=3b
12=3b
b=12/3
b=4
Answer:
b=4
Explanation:
2a=3b
2a=2*6
2*6=12
2a=12
12=3b
12/3=4
b=4
Four 5-gram blocks of metal are sitting out in the sun and absorb the same amount of heat energy. Use the following specific heat capacity data to determine which block will increase its temperature the most.
Substance Specific Heat Capacity (cal/g°C)
iron 0.11
copper 0.09
silver 0.06
lead 0.03
iron
copper
silver
lead
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Answer:
lead
Explanation:
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Answers
Answer: Extensive properties such as the mass, volume and entropy of systems are additive for subsystems, useful for identifying a substance because the substance may be present in any physical properties. Some intensive properties, such as temperature, refractive index and density, aren't useful either.
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Answer:
when the forest burns all the trees die and the ground becomes more fertile.
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What is the law of conservation of mass?
Law of conservation of mass is a law which states that during a chemical reaction mass is neither created nor destroyed.Rather it is the only form of the matter which changes.
In chemistry, the law of conservation of mass can be stated as during a chemical reaction the mass of products is always equal to the mass of the reactants.
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Law of conservation of mass was given in the year 1774 by French chemist Antoine Lavoisier and hence is also known as Lavoisier's law.
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The data were collected over five spring seasons. What is the difference between the number of frogs in the pond when the rainfall was 5 cm and when the rainfall was 20 cm?
Please help
Answers
Answer: they like deep water
Explanation: they do
Round 2.6765 to two significant figures
Answers
Answer:
2.7 Significant Figures
Explanation:
The two significant figure value is "2.7".
Significant figures:Users were required to round up the given value, 2.6765, to two significant numbers in this challenge. Since the given number has no zeroes, all the digits are significant. Therefore, if we need and round the given number to 2 major digits, the number should only have two numbers.
Then we must select if the last digit to be preserved will be scaled up or down, and this will be determined either by digit following the last digit to be retained.Whereas if the digit after the last digit to be kept is greater than 5, the last digit should be rounded up.A digit following the last digit to be kept in the supplied number is 7, which is more than 5, hence using the aforementioned concept, So, the round figure value is "2.7".Therefore, the round figure value is "2.7".
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You are throwing a pizza party for 15 people and figure that each person will eat 4 slices. You call the pizza place and learn that each pizza will cost you $14.75 and it will be cut into 12 slices. How much is the pizza for this party going to cost you? Give the answer to the nearest cent.
Answers
Answer:
15 people x 4 slices so you’ll need 60 pieces
60/12(the amount of slices per pizza) =5
You need 5 pizzas. $14.78 x 5 = 73.90.
Explanation:
the answer is that one 73.90 is rounded nearest cent : ) took me a while to get it
Answer:
the cost of pizza for 15 people is $73.9
Explanation:
a pizza party for 15 and each person will eat 4 slices.
meaning the 15 people will eat 4 x 15 = 60 slices
Since each pizza will cost you $14.78 and will be cut into 12 slices.
`1 pizza = 12 slices = $ 14.78
60 slices = (14.78 x 60) / 12 = 886.8 /12 = $73.9the cost of pizza for 15 people is $73.9
Sprinkler powder on the carron board _________ friction
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Answer:
Sprinkler powder on the carron board reduce friction.
is the study of matter and energy ,and the interactions between the two through forces and motion
Answers
The study of matter and energy ,and the interactions between the two is through forces and motion which is a part of physics.
What is motion?Motion is defined as a phenomenon which is described with respect to change in object's position with respect to time.It is given in terms of displacement,velocity,distance ,acceleration,speed.
Branch of physics which deals with motion of objects without any reference to it's cause is called kinematics while the branch which studies forces and their effects on motion is called as dynamics.
Motion applies to various systems like objects,bodies, matter particles ,radiation ,curvature.There are three laws of motion which are proposed by Newton.Classical mechanics is based on Newton's law of motion.Relativistic mechanics is based on modern kinematics.
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Which of the following is an example of using creativity while doing background research?
Organizing data in tables
Validating results by repetition
Drawing a conclusion
Writing a hypothesis
Answers
Answer:
B
Explanation:
Answer:
D. Writing a hypothesis
Explanation:
Explain how you would test the presence of oxygen and hydrogen gases.
Answers
During radioactive decay, atomic nuclei of unstable isotopes
a.
give off nuclear radiation.
b.
are broken down by radioactive bacteria.
c.
form chemical bonds.
d.
are unchanged.
Answers
Which of the following is a physical
change?
A iron rusting under water
B copper turning green in the air
C solid iodine subliming into a gas
D hydrogen and oxygen producing water
Answers
Answer:
C. solid iodine subliming into a gas
Explanation:
A physical change is a change that is reversible and can be reversed back into the original product. The atoms and molecules undergoes some rearrangement in the physical change. The process of change in the state of matters are placed under physical change. Solid iodine sublimes into purple gas on heating. The gas is then changed back to iodine crystals after being cooled. Hence, this is an example of a physical change.
4 Al(s) + 3 O2(g) --> 2Al2O3 (s) What mole ratio would you use to convert from the given quantity of moles of aluminum to the wanted unit of moles of aluminum oxide?
Answers
Answer:
1:2
Explanation:
For every 4 moles of aluminum, there are 2 moles of aluminum oxide, so the mole ratio when converting from aluminum to alunmimum oxide is
2 moles aluminum oxide:4 moles aluminum. This can be simplified to 1:2.
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Use the table to answer the questions. What is the fastest time trial for the first quarter checkpoint? What is the slowest time trial for the first quarter checkpoint? What is the range of times measured for this checkpoint? All answers in seconds
Answers
Answer:
25
Explanation:
Answer:
Explanation:
What is the fastest time trial for the first quarter checkpoint?
2.02
seconds
What is the slowest time trial for the first quarter checkpoint?
2.15
seconds
What is the range of times measured for this checkpoint?
0.13
seconds
- At sea level, water boils at 100°C. This is an example of an)
a chemical property.
c. physical property.
b. extensive property.
d. chemical change.
Answers
Answer:
d
Explanation:
The measurement of boiling point is a physical property it involves only physical changes and not any chemical change. Hence, option c is correct.
What is physical properties?Physical properties of a substance include properties such as boiling point, melting point, density, mass, solubility etc. These are all characterised with a change in physical state of the substance and not any chemical reactions.
Boiling point of a substance is the temperature at which the substance converts from its liquid state to vapor state where the vapor pressure of the gas phase above the liquid is equal to the atmospheric pressure.
Boiling of a substance does not involve any making or breaking of chemical bonds and not producing a new compound. Therefore, boiling point is a physical property.
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