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
Zanzabum
2 years ago
6

Four computer desks and three office chairs cost $1110. Two desks and five chairs cost $940.

Mathematics
1 answer:
jonny [76]2 years ago
5 0
Let
d = cost of a computer desk
c = cost of an office chair

4d + 3c = 1110
2d + 5c = 940

multiply (2nd) equation by 2

4d + 3c = 1110
4d + 10c = 1880
------------------------subtract
-7c = - 770
 c = 110

2d + 5c = 940
2d + 5(110) = 940
2d = 550 = 940
2d = 390
d = 195


answer
<span>cost of a computer desk = $ 195</span>

You might be interested in
PLEASE HELP WILL MARK BRAINLIEST
inn [45]

Answer:

First one: Rotation

Second one: Translation

Third one: Reflection

Fourth one: Translation

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
The variables y and x have a proportional relationship, and y = 5 when x = 4. What is the value of x when y = 8? Enter your answ
Charra [1.4K]

Answer

Find out the what is the value of x when y = 8 .

To prove

As given

The variables y and x have a proportional relationship.

y \propto x

y = kx

Where k is the constant of proportionality.

As y = 5 when x = 4

Put in the above

5 = 4k

k = \frac{5}{4}

Now find out the value of x , when y = 8

8 = \frac{5\times x}{4}

x = \frac{8\times 4}{5}

x= 6.5

Therefore when y = 8 than x = 6.4

7 0
2 years ago
Read 2 more answers
Study the diagram of circle C.
poizon [28]
I think 90• I’m sorry if it’s not right
7 0
2 years ago
Read 2 more answers
A college is currently accepting students that are both in-state and out-of-state. They plan to accept three times as many in-st
densk [106]

Answer:

\[y < = 300\]

Step-by-step explanation:

Let x = number of out-of-state students at the college

Let y = number of in-state students at the college

As per the given problem, the constraints are as follows:

\[x < = 100\]    --------- (1)

\[y = 3 * x\]      --------- (2)

From the given equations (2), \[ x = y/3 \]

Substituting in (1):

\[y/3 < = 100\]

Or, \[y < = 300\] which is the constraint representing the incoming students.

7 0
3 years ago
Read 2 more answers
5200 for her car 1 year ago. The value of her car now is 4,420
vlada-n [284]

Answer:

the diffrence is 780

subtract



8 0
2 years ago
Other questions:
  • Solve the equation 3x+5y=16 for y
    9·1 answer
  • Six times a number is ten plus four times a number
    10·1 answer
  • Find the first, fourth, and eighth terms of the sequence.<br><br> A(n) = −2 ∙ 2x − 1
    9·1 answer
  • Compute |2+8i|.<br> Need help
    5·1 answer
  • A random sample of CO2 levels in a school has a sample mean of x¯=598.4 ppm and sample standard deviation of s=86.7 ppm. Use the
    12·1 answer
  • How many terms are in the expression 5 - 3c + 21?<br> step by step explantion
    10·1 answer
  • Need some help not very good at fractions so i need some help
    10·1 answer
  • Can someone please help me ​
    7·1 answer
  • ME LO RESUELVEN PORFAA
    13·1 answer
  • A turtle is on a rock that is 1.1 feet above sea level. The turtle dives under water. The turtle's total change in altitude duri
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!