Physics High School

Yodelin has fifty quarters and dimes. Their total value is $9.80. Which of these systems of equations can be used to find the number of quarters (q) and
dimes (d) Yodelin has?

Answers

Answer 1

Answer:

q + d = 50

25q + 10d = 980

Explanation:

The equation that can be employed to determine the number of quarters(q), as well as, dimes(d) that Yodelin has would be:

q + d = 50...(1)

25q + 10d = 980...(2)

Multiplying (1) by 25

25q + 25d = 1250 ...(3)

25q + 10d = 980...(4)

subtracting (4) from (3)

15d = 270

d = 18

q = 50 - 18

    = 32

Answer 2

The system of the equations could be

q + d = 50

25q + 10d = 980

Calculation of the equation and the number of quarters and dimes:

Since Yodelin has fifty quarters and dimes. Their total value is $9.80.

So here the equations be

q + d = 50...(1)

25q + 10d = 980...(2)

Now we have to Multiplying (1) by 25

So,

25q + 25d = 1250 ...(3)

25q + 10d = 980...(4)

Now

subtracting (4) from (3)

15d = 270

d = 18

So,

q = 50 - 18

   = 32

Learn more about equation here; https://brainly.com/question/18648019

Related Questions

protons are present in sodium atom.
a 11
b 10
C 12
d 9

Answers

11

Explanation:

There are 11 protons in a sodium atom

Will was riding his bike when a dog ran out in front of him. He slammed on his brakes. During this quick stop, some of the mechanical energy (his motion) was changed into
A) heat energy.
B) light energy.
C) kinetic energy.
D) gravitational energy.

Answers

Answer:

A

Explanation:

big brain

During this quick stop, some of the mechanical energy (his motion) was changed into heat energy.

What is energy?

Energy is the ability to do work. There are different types of energy such as Heat energy, light energy, kinetic energy, and gravitational energy.

Heat is the energy that moves from one body to another when temperatures are different. Heat passes from the hotter to the colder body when two bodies with differing temperatures are brought together.

The joule is a unit of energy that serves as the SI unit for heat (J). The calorie (cal), which is defined as "the amount of heat necessary to raise the temperature of one gram of water from 14.5 degrees Celsius to 15.5 degrees Celsius," is another common unit of heat measurement.

Therefore, During this quick stop, some of the mechanical energy (his motion) was changed into heat energy.

To learn more about heat energy, refer to the link:

https://brainly.com/question/20038450

#SPJ6

#7 If the Moon’s mass was suddenly tripled, what would occur to the gravitational force between the Earth and the Moon?
(A) Gravitational force would increase by a factor of 3.
(B) Gravitational force would decrease by a factor of 3.
(C) Gravitational force would increase by a factor of 9.
(D) Gravitational force would decrease by a factor of 9.

Answers

Answer:

well it would be (A) Gravitational force would increase by a factor of 3.

Explanation:

because the moon is the only thing that gained mass not the Earth

Other Questions
Which of the following scenarios is representative of parasitism? A.Tapeworms living in mammal's intestinal tract B.Remora fish attaching themselves to sharks C.Birds feeding on insects stirred up by grazing animals D.Birds eating scraps of food from crocodile's teeth What is a taiga?O 1/5O 2/5O 3/5O 4/5 Which of the following substances increases in amount during the cellular respiration of glucose? Select one:a. O2b. NADHc. ADPd. Glucose How does the analogy contrast to the cell wall ? Which European country had better relations with the native americans?A. SpainB. EnglandC. France In the image above, what do the red arrows on lines mean? what are the elements and principles of arts present in this illustration? Match each novel description to the fiction genre it belongs to. Scientists have a theory about the relationship between climate and biodiversity. Which best describes this theory?Warmer climates promote higher biodiversity, allowing plants to grow year-round. This supports more organisms that rely on plants.Colder climates promote higher biodiversity, reducing the competition among organisms for food. This supports stronger organisms that live longer.Warmer climates promote higher biodiversity because they tend to receive more rainfall. This provides a source of water for more organisms.Colder climates promote higher biodiversity because they are usually larger in size. This provides space for more organisms. How did the British treat the Native Americans they came into contact with when they began colonizing North America? Is f^-1(x) = x/9 - 5/9 a function? why are people against the idea of child labor What part of the cell determines the type and order of the amino acids that make up a protein? Please find the area and circumference ofthe circle below Which inequality matches the graph shown? The length of a rectangle is 11 less than 9 times the width. The perimeter of the rectangle is 18 inches You cannot change a decision in the STRONG process after you have made it.Please select the best answer from the choices provided.OF The table shows transactions from five different bank accounts. Fill in the missing numbers Steven sells bags of different kinds of cookies. He made $27 selling bags of Oreos, $18 selling chocolate chips cookies, and $45 selling chunky sugar cookies. Each bag of cookies costs the same amount. What is the most that Steven could charge for each bag of cookies? Read the following instructions for an imaginary assignment:Confucius is an ancient Chinese philosopher. For this project, create a multi-media presentation that teaches Confucius main philosophical ideas to an audience of your classmates.What is your task in this assignment?to create a multi-media presentationto entertain classmates like yourselfto pretend to be a Chinese philosopherto explain Confucius philosophy