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
jok3333 [9.3K]
3 years ago
7

The cost of a new math textbook and a study guide together is $58. Three of the math textbooks and two study guides cost $165. H

ow much does one textbook alone cost?
Mathematics
1 answer:
kompoz [17]3 years ago
6 0

Answer:

Cost of one textbook = $49

Step-by-step explanation:

Given:

Cost of 1 textbook and 1 study guide = $58

Cost of 3 textbook and 2 study guide = $165

Find:

Cost of one textbook

Computation:

Assume,

Cost of one textbook = a

Cost of one study guide = b

So,

a + b = 58

b = 58 - a

3a + 2b = 165

3a + 2(58-a) = 165

3a - 2a + 116 = 165

a = 49

Cost of one textbook = $49

You might be interested in
Joseph and Molly each have coin collections.
Ugo [173]

Answer:

Joseph has 175

Molly has 275

Step-by-step explanation:

y = 15x + 25

y = 25x + 25

You can put this into Desmos

Red is Joseph and Molly is blue

Molly - (10, 275)

Joseph - (10, 175)

x = the time

y = money over time

6 0
3 years ago
Q10. Assertion: 2.05 Kg = 20500 g.
jeyben [28]

Answer:

b. only reason is correct

2.05 kg=2.05 ×1000 g

=2050 g

so the Assertion is incorrect

5 0
3 years ago
A garrison of 400men had food for 40days.After 10 days,200 more men joined them .How long will the food last now?(Assume that th
mestny [16]

Let x be the amount of food needed for one man for one day. At the beginning, we have enough food for 400 men for 40 days, i.e.

400\cdot 40\cdot x = 16000x

After 10 days, the 400 men will have consumed

400\cdot 10\cdot x = 4000x

food, impliying that the food remaining is

16000x-4000x=12000x

If 200 more men join the garrison, there are now 600 men. Each of them requires x food each day, and there are 12000x units of food remaining. They will last

\dfrac{12000x}{600}=20 days.

6 0
3 years ago
A system of equations is shown below.
EastWind [94]

Multiply equation B by 3 and add the result to

equation A.

4 0
3 years ago
How is the graph of y=-2(3)^x+4 translated from the graph of y=2(3)^x
Luda [366]
It is reflected across the x-axis and the constant multiplicative rate is increased by four, downwards
4 0
3 years ago
Read 2 more answers
Other questions:
  • Wilma saves $12,000 at the end of every six months for 10 years. Assume 10% compounded semiannually and find the present value.
    8·1 answer
  • Having some trouble solving this one. Help?
    10·1 answer
  • The Smith family has a circular garden with a diameter of 22 feet. They cover the garden with mulch. The cost of the mulch is $1
    9·1 answer
  • Using the segment addition postulate, which is true?
    6·1 answer
  • What is the value of x in A and what is the value of y in B?
    14·1 answer
  • Evaluate the expression on top. Pls need help
    8·2 answers
  • Consider the pattern shown in the table below
    11·1 answer
  • 96/8 useing distributive property
    5·1 answer
  • Pls helppp I’ll mark u brainliest
    8·1 answer
  • Mr Tarun earns dollar $12.50 a day how much would he earn if he works for 6 days​
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!