Maths-

General

Easy

Question

A college mathematics department plans to spend $straight $$ 1,800 buying computers and books. Each computer costs $straight $$ 300 and each book costs $straight $$ 90 . Which equation represents this situation, where x is the number of computers and y is the number of books that the department can buy?

$300 x + 90 y = 1, 800$
$90 x + 300 y = 1, 800$
$390 (x + y) = 1, 800$
$1, 800 (x + y) = 390$

The correct answer is: $300 text x end text plus 90 text y end text equals 1 comma 800$

HINT:- Total amount to spend is the sum of cost of x computer and y books.
Explanation :
The total amount to be spent is given as $1,800 and this amount to be spent on books(where ,cost of each book is given as $ 90) and computer (where ,cost of each computer is given as $ 300).
Total no. of computers =x (given)
Total no. of books =y(given)
Step 1: Finding the cost of x computer = no. of computers $cross times$ cost of each computer
= x $cross times$ $ 300
Finding the cost of y books = no. of books $cross times$ cost of each book
= y $cross times$ $ 90
Step 2: Total amount to be spend = $1,800
cost of x computer + cost of y books = Total amount to spend
300x = 90y + 1800
∴ 300x = 90y + 1800 represents the given situation

Which of the following is equivalent to $2 open parentheses x squared minus x close parentheses plus 3 open parentheses x squared minus x close parentheses$ ?

Maths-General

General

Maths-

$2 x minus y equals 8$
$x plus 2 y equals 4$
For the system of equations above, what is the value of x + y?

Maths-General

General

Ohm's law is applicable to

Ohm's law is not applicable for non ohmic conductors.
It is only true for ohmic conductors.

Ohm's law is applicable to

GeneralGeneral

Ohm's law is not applicable for non ohmic conductors.
It is only true for ohmic conductors.

General

A cinquain poem is a collection of __________.

GeneralGeneral

General

Find the equation to find the total area of the given figure.

For such questions, we should know distributive property.

Find the equation to find the total area of the given figure.

GeneralGeneral

For such questions, we should know distributive property.

General

An ice cream store can make 280 quarts of ice cream in 7 hours. ____________ quarts of ice cream can be made in 48 hours.

We should be careful about the units. Before operation we should make sure same quantities have same unit.

An ice cream store can make 280 quarts of ice cream in 7 hours. ____________ quarts of ice cream can be made in 48 hours.

GeneralGeneral

We should be careful about the units. Before operation we should make sure same quantities have same unit.

General

Write the equivalent expressions for the following:
10(m + 10)

For such questions, we should the properties required to solve algebraic expression.

Write the equivalent expressions for the following:
10(m + 10)

GeneralGeneral

For such questions, we should the properties required to solve algebraic expression.

General

A wave $straight y equals aSin invisible function application left parenthesis text ùt end text minus kx right parenthesis$ on a string meets with another wave producing a node at x=0. Then the equation of the unknown wave is

Physics-General

General

Physics-

If the velocity of planet is given by $straight v equals straight G to the power of 4 straight M to the power of straight b straight R to the power of straight prime$ then

Physics-General

General

Physics-

The displacement for a particle performing S.H.M. is given by $straight x equals ACos left parenthesis ut plus straight O with not stretchy hat on top right parenthesis$ . If the initial position of the particle is Icm and its initial vebocity is p cms¹, then what will be itsinitial phase? The, angular frequency of the particle is ps¹

Physics-General

General

Physics-

As shown in figure, a spring attached to the ground vertically has a horizontal massless plate with a $2 text end text k g$ mass in it. When the spring ( massless) is pressed slightly and released, the 2 kg mass, starts executing S.H.M. The force constant of the spring is $200 text end text N text end text m to the power of 1 end exponent$ . For what minimum value of amplitude, will the mass loose contact with the plate? (Take g=10 $text end text m s to the power of negative 2 end exponent$ )

Physics-General

General

Physics-

A plane mirror is placed at the bottom of a tank containing a liquid of refractive index n. P is a small object at a height h above the mirror. An observer O, vertically above P, outside the liquid sees P and its image in the mirror. The apparent distance betwecn these two wall be

Physics-General

Have a query? Ask a Tutor!!

Can’t find what you’re looking for?

A college mathematics department plans to spend 1,800 buying computers and books. Each computer costs 300 and each book costs 90 . Which equation represents this situation, where x is the number of computers and y is the number of books that the department can buy?

The correct answer is:

Related Questions to study

Which of the following is equivalent to ?

Which of the following is equivalent to ?

For the system of equations above, what is the value of x + y?

For the system of equations above, what is the value of x + y?

Ohm's law is applicable to

Ohm's law is applicable to

A cinquain poem is a collection of __________.

A cinquain poem is a collection of __________.

Find the equation to find the total area of the given figure.

Find the equation to find the total area of the given figure.

An ice cream store can make 280 quarts of ice cream in 7 hours. ____________ quarts of ice cream can be made in 48 hours.

An ice cream store can make 280 quarts of ice cream in 7 hours. ____________ quarts of ice cream can be made in 48 hours.

Write the equivalent expressions for the following:10(m + 10)

Write the equivalent expressions for the following:10(m + 10)

400 inch is _____% of 1600 inches.

400 inch is _____% of 1600 inches.

The temperature at which a substance fuses is called its _____.

The temperature at which a substance fuses is called its _____.

The rays which are hardest to stop are________ rays.

The rays which are hardest to stop are________ rays.

A wave on a string meets with another wave producing a node at x=0. Then the equation of the unknown wave is

A wave on a string meets with another wave producing a node at x=0. Then the equation of the unknown wave is

If the velocity of planet is given by then

If the velocity of planet is given by then

The displacement for a particle performing S.H.M. is given by . If the initial position of the particle is Icm and its initial vebocity is p cms1, then what will be itsinitial phase? The, angular frequency of the particle is ps1

The displacement for a particle performing S.H.M. is given by . If the initial position of the particle is Icm and its initial vebocity is p cms1, then what will be itsinitial phase? The, angular frequency of the particle is ps1

A plane mirror is placed at the bottom of a tank containing a liquid of refractive index n. P is a small object at a height h above the mirror. An observer O, vertically above P, outside the liquid sees P and its image in the mirror. The apparent distance betwecn these two wall be

A plane mirror is placed at the bottom of a tank containing a liquid of refractive index n. P is a small object at a height h above the mirror. An observer O, vertically above P, outside the liquid sees P and its image in the mirror. The apparent distance betwecn these two wall be

With Turito Academy.

With Turito Foundation.

Get an Expert Advice From Turito.

Turito Academy

With Turito Academy.

Test Prep

With Turito Foundation.

Courses

Quick Links

The correct answer is: $300 text x end text plus 90 text y end text equals 1 comma 800$

Which of the following is equivalent to $2 open parentheses x squared minus x close parentheses plus 3 open parentheses x squared minus x close parentheses$ ?

Which of the following is equivalent to $2 open parentheses x squared minus x close parentheses plus 3 open parentheses x squared minus x close parentheses$ ?

$2 x minus y equals 8$
$x plus 2 y equals 4$
For the system of equations above, what is the value of x + y?

$2 x minus y equals 8$
$x plus 2 y equals 4$
For the system of equations above, what is the value of x + y?

Write the equivalent expressions for the following:
10(m + 10)

Write the equivalent expressions for the following:
10(m + 10)

A wave $straight y equals aSin invisible function application left parenthesis text ùt end text minus kx right parenthesis$ on a string meets with another wave producing a node at x=0. Then the equation of the unknown wave is

A wave $straight y equals aSin invisible function application left parenthesis text ùt end text minus kx right parenthesis$ on a string meets with another wave producing a node at x=0. Then the equation of the unknown wave is

If the velocity of planet is given by $straight v equals straight G to the power of 4 straight M to the power of straight b straight R to the power of straight prime$ then

If the velocity of planet is given by $straight v equals straight G to the power of 4 straight M to the power of straight b straight R to the power of straight prime$ then